1 | /************************************ |
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2 | Extended Kalman Filter |
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3 | Matrix operations |
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4 | |
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5 | Z. Peroutka |
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6 | |
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7 | Rev. 15.3.2008 |
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8 | |
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9 | 15.3. 2008 Kompletni kontrola vypoctu + zamena q15->int a q30->long |
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10 | |
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11 | *************************************/ |
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12 | |
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13 | #include "matrix.h" |
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14 | |
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15 | /* Vsechny meze se udavaji ve tvaru (rozmer_matice - 1), abych mel ve FOR konstantni horni mez) */ |
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16 | |
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17 | /* Matrix addition in q15: m1 + m2 = result[rows, columns] */ |
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18 | void madd(int *m1, int *m2, int *result, unsigned int rows, unsigned int columns); |
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19 | |
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20 | /* add diagonal matrix m2 to matrix m1 - both in format q15, minrowcol = min(rows, columns) */ |
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21 | void maddD(int *m1, int *m2, unsigned int minrowcol, unsigned int columns); |
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22 | |
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23 | /* Matrix substraction in q15: m1 - m2 = result[rows, columns] */ |
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24 | void msub(int *m1, int *m2, int *result, unsigned int rows, unsigned int columns); |
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25 | |
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26 | /* Matrix multiply in q15: m1[rows,columnsx]*m2[columnsx,columns] = result[rows,columns] */ |
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27 | void mmult(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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28 | columns); |
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29 | |
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30 | /* Matrix multiplication in q15: m1[rows,columnsx]*(m2[columnsx,columns]transpose) = result[rows,columns] */ |
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31 | void mmultt(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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32 | columns); |
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33 | |
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34 | /* matrix multiplication in q15: sum is in q15 */ |
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35 | void mmult15(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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36 | columns); |
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37 | |
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38 | |
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39 | /* Matrix multiplication in q15 (sum is in q15): m1[rows,columnsx]*(m2[columns,columnsx]transpose) = result[rows,columns] */ |
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40 | void mmultt15(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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41 | columns); |
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42 | |
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43 | |
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44 | /* Matrix multiplication - Q15 * Q30 format -> RESULT in Q15 */ |
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45 | void mmult1530(int *m1, long *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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46 | columns); |
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47 | |
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48 | /* Left matrix multiplication with DIAG ones matrix in q15: DIAG[rows,columnsx]*m2[columnsx,columns] = result[rows,columns] |
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49 | minrowcol=minimum(rows, columnsx) */ |
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50 | void mmultDl(int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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51 | columns, unsigned int minrowcol); |
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52 | |
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53 | /* Left matrix multiplication with DIAG matrix in q15: DIAG[rows,columnsx]*m2[columnsx,columns] = result[rows,columns] |
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54 | minrowcol=minimum(rows, columnsx) */ |
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55 | void mmultDl15(int *DIAG, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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56 | columns, unsigned int minrowcol); |
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57 | |
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58 | /* Right matrix multiplication with DIAG ones matrix in q15: m1[rows,columnsx]*DIAG[columnsx,columns] = result[rows,columns] |
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59 | minrowcol=minimum(columnsx,columns) */ |
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60 | void mmultDr(int *m1, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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61 | columns, unsigned int minrowcol); |
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62 | |
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63 | /* Right matrix multiplication with DIAG matrix in q15: m1[rows,columnsx]*DIAG[columnsx,columns] = result[rows,columns] |
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64 | minrowcol=minimum(columnsx,columns) */ |
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65 | void mmultDr15(int *m1, int *DIAG, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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66 | columns, unsigned int minrowcol); |
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67 | |
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68 | /* Matrix transposition in q15: m1.' = result[rows, columns] */ |
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69 | void mtrans(int *m1, int *result, unsigned int rows, unsigned int columns); |
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70 | |
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71 | /* Matrix [2,2] inversion in q15: inv(m1) = result[rows, columns] */ |
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72 | void minv2(int *matrix, long *result); |
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73 | |
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74 | void choice_P(int *m, int *result, unsigned int columns); |
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75 | void choice_x(int *m, int *result); |
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76 | |
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77 | |
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78 | /* matrix addition in q15 */ |
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79 | void madd(int *m1, int *m2, int *result, unsigned int rows, unsigned int columns) |
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80 | { |
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81 | unsigned int i,j; |
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82 | |
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83 | for (i=0; i<=rows; i++) |
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84 | for (j=0; j<=columns; j++) |
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85 | *result++ = *m1++ + *m2++; |
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86 | } |
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87 | |
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88 | |
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89 | /* add diagonal matrix m2 to matrix m1 - both in format q15, minrowcol = min(rows, columns) */ |
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90 | void maddD(int *m1, int *m2, unsigned int minrowcol, unsigned int columns) |
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91 | { |
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92 | unsigned int i; |
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93 | |
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94 | for (i=0; i<=minrowcol; i++) |
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95 | /* *(m1+i*(columns+1)+i) += *(m2+i*(columns+1)+i); */ |
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96 | { |
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97 | *m1 += *m2; |
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98 | m1+=(columns+2); |
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99 | m2+=(columns+2); |
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100 | } |
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101 | |
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102 | } |
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103 | |
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104 | /* Matrix substraction in q15 */ |
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105 | void msub(int *m1, int *m2, int *result, unsigned int rows, unsigned int columns) |
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106 | { |
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107 | unsigned int i,j; |
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108 | |
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109 | for (i=0; i<=rows; i++) |
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110 | for (j=0; j<=columns; j++) |
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111 | *result++ = *m1++ - *m2++; |
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112 | } |
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113 | |
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114 | |
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115 | /* matrix multiplication in q15 */ |
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116 | void mmult(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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117 | columns) |
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118 | { |
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119 | unsigned int i, j, k; |
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120 | long tmp_sum=0; |
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121 | int *m2pom; |
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122 | |
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123 | for (i=0; i<=rows; i++) |
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124 | { |
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125 | for (j=0; j<=columns; j++) |
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126 | { |
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127 | m2pom=m2+j; |
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128 | |
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129 | for (k=0; k<=columnsx; k++) |
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130 | { |
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131 | tmp_sum+=(long)(*m1++)**m2pom; |
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132 | m2pom+=columns+1; |
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133 | } |
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134 | |
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135 | // saturation effect |
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136 | tmp_sum=tmp_sum>>15; |
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137 | if (tmp_sum>32767) tmp_sum=32767; |
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138 | if (tmp_sum<-32768) tmp_sum=-32768; |
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139 | |
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140 | *result++=tmp_sum; |
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141 | |
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142 | tmp_sum=0; |
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143 | m1-=(columnsx+1); |
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144 | } |
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145 | m1+=(columnsx+1); |
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146 | } |
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147 | } |
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148 | |
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149 | |
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150 | /* Matrix multiplication in q15: m1[rows,columnsx]*(m2[columns,columnsx]transpose) = result[rows,columns] */ |
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151 | void mmultt(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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152 | columns) |
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153 | { |
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154 | unsigned int i, j, k; |
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155 | long tmp_sum=0; |
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156 | int *m2pom=m2; |
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157 | |
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158 | for (i=0; i<=rows; i++) |
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159 | { |
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160 | for (j=0; j<=columns; j++) |
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161 | { |
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162 | for (k=0; k<=columnsx; k++) |
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163 | tmp_sum+=(long)(*m1++)*(*m2pom++); |
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164 | |
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165 | // saturation effect |
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166 | tmp_sum=tmp_sum>>15; |
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167 | if (tmp_sum>32767) tmp_sum=32767; |
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168 | if (tmp_sum<-32768) tmp_sum=-32768; |
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169 | |
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170 | *result++=tmp_sum; |
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171 | |
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172 | tmp_sum=0; |
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173 | m1-=(columnsx+1); |
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174 | } |
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175 | m2pom=m2; |
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176 | m1+=(columnsx+1); |
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177 | } |
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178 | } |
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179 | |
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180 | |
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181 | /* matrix multiplication in q15: sum is in q15 */ |
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182 | void mmult15(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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183 | columns) |
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184 | { |
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185 | unsigned int i, j, k; |
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186 | long tmp_sum=0; |
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187 | int *m2pom; |
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188 | |
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189 | for (i=0; i<=rows; i++) |
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190 | { |
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191 | for (j=0; j<=columns; j++) |
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192 | { |
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193 | m2pom=m2+j; |
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194 | |
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195 | for (k=0; k<=columnsx; k++) |
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196 | { |
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197 | tmp_sum+=((long)(*m1++)**m2pom)>>15; |
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198 | m2pom+=columns+1; |
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199 | } |
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200 | |
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201 | // saturation effect |
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202 | if (tmp_sum>32767) tmp_sum=32767; |
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203 | if (tmp_sum<-32768) tmp_sum=-32768; |
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204 | |
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205 | *result++=tmp_sum; |
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206 | |
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207 | tmp_sum=0; |
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208 | m1-=(columnsx+1); |
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209 | } |
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210 | m1+=(columnsx+1); |
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211 | } |
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212 | } |
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213 | |
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214 | |
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215 | /* Matrix multiplication in q15 (sum is in q15): m1[rows,columnsx]*(m2[columns,columnsx]transpose) = result[rows,columns] */ |
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216 | void mmultt15(int *m1, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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217 | columns) |
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218 | { |
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219 | unsigned int i, j, k; |
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220 | long tmp_sum=0; |
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221 | int *m2pom=m2; |
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222 | |
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223 | for (i=0; i<=rows; i++) |
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224 | { |
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225 | for (j=0; j<=columns; j++) |
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226 | { |
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227 | for (k=0; k<=columnsx; k++) |
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228 | tmp_sum+=((long)(*m1++)*(*m2pom++))>>15; |
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229 | |
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230 | // saturation effect |
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231 | if (tmp_sum>32767) tmp_sum=32767; |
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232 | if (tmp_sum<-32768) tmp_sum=-32768; |
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233 | |
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234 | *result++=tmp_sum; |
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235 | |
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236 | tmp_sum=0; |
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237 | m1-=(columnsx+1); |
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238 | } |
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239 | m2pom=m2; |
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240 | m1+=(columnsx+1); |
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241 | } |
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242 | } |
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243 | |
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244 | |
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245 | /* Matrix multiplication - Q15 * Q30 format -> RESULT in Q15 */ |
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246 | void mmult1530(int *m1, long *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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247 | columns) |
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248 | { |
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249 | unsigned int i, j, k; |
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250 | long tmp_sum=0; |
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251 | long *m2pom; |
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252 | |
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253 | for (i=0; i<=rows; i++) |
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254 | { |
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255 | for (j=0; j<=columns; j++) |
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256 | { |
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257 | m2pom=m2+j; |
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258 | |
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259 | for (k=0; k<=columnsx; k++) |
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260 | { |
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261 | tmp_sum+=(long)(*m1++)**m2pom; |
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262 | m2pom+=columns+1; |
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263 | } |
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264 | |
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265 | // saturation effect |
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266 | tmp_sum=tmp_sum>>15; |
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267 | if (tmp_sum>32767) tmp_sum=32767; |
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268 | if (tmp_sum<-32768) tmp_sum=-32768; |
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269 | |
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270 | *result++=tmp_sum; |
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271 | |
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272 | tmp_sum=0; |
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273 | m1-=(columnsx+1); |
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274 | } |
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275 | m1+=(columnsx+1); |
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276 | } |
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277 | } |
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278 | |
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279 | |
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280 | /* Left matrix multiplication with DIAG ones matrix in q15: DIAG[rows,columnsx]*m2[columnsx,columns] = result[rows,columns] |
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281 | minrowcol=minimum(rows, columnsx) */ |
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282 | void mmultDl(int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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283 | columns, unsigned int minrowcol) |
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284 | { |
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285 | unsigned int i,j; |
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286 | /* int *res_tmp=result; */ |
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287 | |
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288 | /* This erase sequence have to be enabled in case that result matrix has more terms than DIAG matrix */ |
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289 | /* for (i=0;i<=rows;i++) |
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290 | for (j=0;j<=columns;j++) |
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291 | *res_tmp++=0; |
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292 | /* END OF ERASE SEQUENCE */ |
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293 | |
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294 | for (i=0;i<=minrowcol;i++) |
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295 | for (j=0;j<=columns;j++) |
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296 | *result++=*m2++; |
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297 | } |
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298 | |
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299 | |
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300 | /* Left matrix multiplication with DIAG matrix in q15: DIAG[rows,columnsx]*m2[columnsx,columns] = result[rows,columns] |
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301 | minrowcol=minimum(rows, columnsx) */ |
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302 | void mmultDl15(int *DIAG, int *m2, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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303 | columns, unsigned int minrowcol) |
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304 | { |
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305 | unsigned int i,j; |
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306 | /* int *res_tmp=result; */ |
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307 | |
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308 | /* This erase sequence have to be enabled in case that result matrix has more terms than DIAG matrix */ |
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309 | /* for (i=0;i<=rows;i++) |
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310 | for (j=0;j<=columns;j++) |
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311 | *res_tmp++=0; |
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312 | /* END OF ERASE SEQUENCE */ |
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313 | |
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314 | for (i=0;i<=minrowcol;i++) |
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315 | { |
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316 | for (j=0;j<=columns;j++) |
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317 | *result++=((long)(*DIAG)*(*m2++))>>15; |
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318 | |
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319 | DIAG+=(columnsx+1); |
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320 | } |
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321 | } |
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322 | |
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323 | |
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324 | /* Right matrix multiplication with DIAG ones matrix in q15: m1[rows,columnsx]*DIAG[columnsx,columns] = result[rows,columns] |
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325 | minrowcol=minimum(columnsx,columns) */ |
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326 | void mmultDr(int *m1, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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327 | columns, unsigned int minrowcol) |
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328 | { |
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329 | unsigned int i,j; |
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330 | /* int *res_tmp=result; */ |
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331 | |
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332 | /* This erase sequence have to be enabled in case that result matrix has more terms than DIAG matrix */ |
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333 | /* for (i=0;i<=rows;i++) |
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334 | for (j=0;j<=columns;j++) |
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335 | *res_tmp++=0; |
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336 | /* END OF ERASE SEQUENCE */ |
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337 | |
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338 | for (i=0;i<=rows;i++) |
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339 | { |
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340 | for (j=0;j<=minrowcol;j++) |
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341 | *result++=*m1++; |
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342 | |
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343 | m1+=(columnsx-minrowcol); |
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344 | result+=(columns-minrowcol); |
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345 | } |
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346 | } |
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347 | |
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348 | |
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349 | |
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350 | /* Right matrix multiplication with DIAG matrix in q15: m1[rows,columnsx]*DIAG[columnsx,columns] = result[rows,columns] |
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351 | minrowcol=minimum(columnsx,columns) */ |
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352 | void mmultDr15(int *m1, int *DIAG, int *result, unsigned int rows, unsigned int columnsx, unsigned int |
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353 | columns, unsigned int minrowcol) |
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354 | { |
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355 | unsigned int i,j; |
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356 | int *DIAG_tmp=DIAG; |
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357 | /* int *res_tmp=result; */ |
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358 | |
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359 | /* This erase sequence have to be enabled in case that result matrix has more terms than DIAG matrix */ |
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360 | /* for (i=0;i<=rows;i++) |
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361 | for (j=0;j<=columns;j++) |
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362 | *res_tmp++=0; |
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363 | /* END OF ERASE SEQUENCE */ |
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364 | |
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365 | for (i=0;i<=rows;i++) |
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366 | { |
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367 | for (j=0;j<=minrowcol;j++) |
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368 | { |
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369 | *result++=((long)(*m1++)**DIAG_tmp)>>15; |
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370 | DIAG_tmp+=columns+2; |
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371 | } |
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372 | |
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373 | DIAG_tmp=DIAG; |
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374 | m1+=(columnsx-minrowcol); |
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375 | result+=(columns-minrowcol); |
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376 | } |
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377 | } |
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378 | |
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379 | |
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380 | /* matrix transposition - neni optimalizovana, protoze se nepouziva */ |
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381 | void mtrans(int *m1, int *result, unsigned int rows, unsigned int columns) |
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382 | { |
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383 | unsigned int i, j; |
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384 | |
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385 | for (i=0; i<=rows; i++) |
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386 | for (j=0; j<=columns; j++) |
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387 | *result++=*(m1+(columns+1)*j+i); |
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388 | } |
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389 | |
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390 | /* matrix [2,2] inversion */ |
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391 | void minv2(int *matrix, long *result) |
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392 | { |
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393 | int det; |
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394 | unsigned int i; |
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395 | |
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396 | det=((long)*matrix**(matrix+3)-(long)*(matrix+1)**(matrix+2))>>15; |
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397 | if (det==0) det=1; |
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398 | |
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399 | *result++=(((long)*(matrix+3))<<15)/det; |
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400 | *result++=(((long)*(matrix+1))<<15)/det; |
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401 | *result++=(((long)*(matrix+2))<<15)/det; |
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402 | *result++=(((long)*matrix)<<15)/det; |
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403 | } |
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404 | |
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405 | |
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406 | void choice_P(int *m, int *result, unsigned int columns) |
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407 | { |
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408 | *result++=*m; |
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409 | *result++=*(m+1); |
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410 | *result++=*(m+columns+1); |
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411 | *result++=*(m+columns+2); |
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412 | } |
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413 | |
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414 | |
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415 | void choice_x(int *m, int *result) |
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416 | { |
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417 | *result++=*m++; |
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418 | *result=*m; |
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419 | } |
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