| 雷达低仰角偏轴跟踪测量偏差补偿算法的改进研究 |
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| 引用本文： | 王顺民,李兵,张艳颖. 雷达低仰角偏轴跟踪测量偏差补偿算法的改进研究[J]. 计算机测量与控制, 2008, 16(12): 1890-1892,1902 |
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| 作者姓名： | 王顺民 李兵 张艳颖 |
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| 作者单位： | 中国人民解放军92941部队,辽宁,葫芦岛,125000 |
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| 摘 要： | 由于多径回波信号的干扰,严重影响了单脉冲测角体制雷达对低仰角目标俯仰角的测量,并使其对低仰角目标俯仰角的闭环跟踪测量实现极为困难;通过对多路径反射环境模型分析,同时考虑镜面反射和漫反射的干扰,得出了单脉冲雷达低仰角跟踪时俯仰角测量误差的产生原因,用传统的多目标分辨算法(C~2算法)弥补偏差补偿算法在目标飞行高度很低(5 m以下)时和距离近时补偿效果较差的不足;在给定的测量环境下对不同高度目标进行了仿真,得到良好的仿真结果,表明两种算法结合使用,可较大地提高低仰角目标偏轴跟踪俯仰角的测量精度。
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| 关 键 词： | 低仰角 多径干扰 偏轴跟踪 偏差补偿算法 仿真 |
Improve of Bias Compensation Algorithm for Radar Low-Elevation off-axis Measurement |
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| Wang Shunmin,Li bing,Zhang yanying. Improve of Bias Compensation Algorithm for Radar Low-Elevation off-axis Measurement[J]. Computer Measurement & Control, 2008, 16(12): 1890-1892,1902 |
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| Authors: | Wang Shunmin Li bing Zhang yanying |
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| Affiliation: | Wang Shunmin Li bing Zhang yanying |
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| Abstract: | In the presence of sea-surface multi-path,monopulse radar measure a low elevation target is difficult.So off-axis tracking technique was adopted.By means of the analysis based on the model of multi-path reflection environment.Expression for the average bias in the mono-pulse ratio due to specular and diffuse reflections and the noise in the radar channel are derived,algorithm combine with bias com- pensation to adapts for measurement extraction the elevation.The results of simulation indicate it can improve the precision of low-altitude target elevation measurement in off-axis tracking radar system. |
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| Keywords: | low-angle multi-path jamming off-axis tracking bias compensation algorithm computer simulation |
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