Research Article
Designing a Kalman–Bucy State Estimator for a Full Vertical Car Model
Table 7
Effect of weight matrix for measuring noise
Rn (4 signals) varies with speed with
Qn =
e − 5.
| Qn | Rn | Speed | Zs | Zs hat | Zsd | Zsd hat | Phi | Phi hat | Teta | Teta hat |
| e − 1 | 1 | 50 | 0.0084 | 0.0084 | 0.0457 | 0.0459 | 0.0051 | 0.0051 | 0.0091 | 0.0091 | e − 1 | 0.1 | 50 | 0.0084 | 0.0087 | 0.0453 | 0.0484 | 0.0052 | 0.0052 | 0.0089 | 0.009 | e − 1 | 0.01 | 50 | 0.0082 | 0.0108 | 0.0452 | 0.0736 | 0.005 | 0.005 | 0.0091 | 0.0091 | e − 1 | 0.001 | 50 | 0.0082 | 0.0132 | 0.0463 | 0.0985 | 0.0052 | 0.0052 | 0.009 | 0.009 | e − 1 | 0.0001 | 50 | 0.0082 | 0.0137 | 0.046 | 0.1049 | 0.0052 | 0.0052 | 0.009 | 0.009 |
| e − 1 | 1 | 80 | 0.0074 | 0.0075 | 0.0612 | 0.0622 | 0.0147 | 0.0142 | 0.0061 | 0.0063 | e − 1 | 0.1 | 80 | 0.0074 | 0.0078 | 0.0616 | 0.0661 | 0.0147 | 0.0143 | 0.0061 | 0.0063 | e − 1 | 0.01 | 80 | 0.0074 | 0.0104 | 0.0615 | 0.0885 | 0.0147 | 0.0143 | 0.0061 | 0.0064 | e − 1 | 0.001 | 80 | 0.0074 | 0.0128 | 0.0611 | 0.1106 | 0.0146 | 0.0142 | 0.0061 | 0.0064 | e − 1 | 0.0001 | 80 | 0.0074 | 0.0134 | 0.061 | 0.1173 | 0.0147 | 0.0143 | 0.0061 | 0.0064 |
| e − 1 | 1 | 100 | 0.007 | 0.0071 | 0.0595 | 0.0603 | 0.0189 | 0.0186 | 0.0044 | 0.0044 | e − 1 | 0.1 | 100 | 0.007 | 0.0074 | 0.0594 | 0.0633 | 0.0188 | 0.0186 | 0.0044 | 0.0044 | e − 1 | 0.01 | 100 | 0.007 | 0.0099 | 0.0597 | 0.0864 | 0.0188 | 0.0185 | 0.0043 | 0.0045 | e − 1 | 0.001 | 100 | 0.007 | 0.0125 | 0.0604 | 0.1081 | 0.019 | 0.0187 | 0.0044 | 0.0045 | e − 1 | 0.0001 | 100 | 0.007 | 0.013 | 0.0604 | 0.1138 | 0.019 | 0.0187 | 0.0044 | 0.0045 |
| e − 1 | 1 | 150 | 0.0036 | 0.0036 | 0.0404 | 0.0411 | 0.0103 | 0.0104 | 0.0045 | 0.0044 | e − 1 | 0.1 | 150 | 0.0036 | 0.0038 | 0.0404 | 0.0419 | 0.0102 | 0.0104 | 0.0045 | 0.0044 | e − 1 | 0.01 | 150 | 0.0036 | 0.0066 | 0.04 | 0.0627 | 0.0103 | 0.0104 | 0.0044 | 0.0044 | e − 1 | 0.001 | 150 | 0.0036 | 0.0096 | 0.0402 | 0.0854 | 0.0107 | 0.0108 | 0.0046 | 0.0046 | e − 1 | 0.0001 | 150 | 0.0036 | 0.0102 | 0.0401 | 0.0923 | 0.0106 | 0.0108 | 0.0046 | 0.0046 |
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