Research Article
VCH: A Velocity Measurement Method Combining HFM Signals
Table 2
Results under simulation environment 2.
| Speed (m/s) | Peak moment (s) | Speed measurement of VCH (m/s) | Ranging of VCH (km) | Speed measurement error of VCH | Ranging error of VCH | Ranging error of single signal | Range accuracy improvement ratio | | | HFM1 | HFM2 | Compared to HFM1 | Compared to HFM2 |
| 20 | 20.7103 | 22.1313 | 20.0007 | 14.9998 | 0.0035% | 0.001333% | 3.5515% | 19.3435% | 99.96246% | 99.99311% | 10 | 20.3577 | 22.5625 | 10.0059 | 14.9998 | 0.059% | 0.000667% | 1.7885% | 17.1875% | 99.96272% | 99.99612% | -5 | 20.1792 | 22.7807 | 4.9978 | 14.9998 | 0.044% | 0.000667% | 0.896% | 16.0965% | 99.9256% | 99.99586% | -20 | 19.2698 | 23.8913 | -19.9885 | 14.9996 | 0.0075% | 0.002667% | 3.651% | 10.5435% | 99.92696% | 99.97471% | -10 | 19.6378 | 23.4425 | -9.9913 | 15 | 0.087% | 0% | 1.811% | 12.7875% | 100% | 100% | -5 | 19.8188 | 23.2207 | -5.0062 | 14.9997 | 0.124% | 0.002% | 0.906% | 13.8965% | 99.77925% | 99.98561% |
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