| LFM脉冲雷达测距偏差分析与估计 |
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| 引用本文： | 施龙飞,李盾,王雪松,肖顺平.LFM脉冲雷达测距偏差分析与估计[J].国防科技大学学报,2005,27(4):66-70. |
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| 作者姓名： | 施龙飞 李盾 王雪松 肖顺平 |
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| 作者单位： | 国防科技大学,电子科学与工程学院,湖南,长沙,410073 |
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| 基金项目： | 全国优秀博士论文专项资金资助项目(08100101) |
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| 摘 要： | 研究了线性调频(LFM)脉冲体制雷达由于距离-多普勒耦合效应造成的测距偏差问题。推导、分析了该测距偏差的产生机理,指出了偏差中被大多数研究者遗漏的非线性余项,并分析了该余项与雷达发射信号及目标运动参数的关系;利用无约束优化方法对该偏差余项进行估计。最后,计算机仿真实验验证了分析结论和估计算法的正确性。
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| 关 键 词： | 线性调频 距离-多普勒耦合 无约束优化 |
| 文章编号： | 1001-2486(2005)04-0066-05 |
| 收稿时间： | 2005/1/27 0:00:00 |
| 修稿时间： | 2005年1月27日 |
The Analysis and Estimation of the Ranging Bias in LFM Pulsed Radar |
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| SHI Longfei,LI Dun,WANG Xuesong and XIAO Shunping.The Analysis and Estimation of the Ranging Bias in LFM Pulsed Radar[J].Journal of National University of Defense Technology,2005,27(4):66-70. |
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| Authors: | SHI Longfei LI Dun WANG Xuesong and XIAO Shunping |
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| Abstract: | The problem of LFM pulsed radar's ranging bias due to the range-Doppler coupling is studied. The mechanism of the ranging bias is derived and analyzed. The nolinear residue of the bias neglected by most researchers is pointed out emphatically. And the relationship between this residue and the parameters of the radar waveforms and target motion is analyzed. An unconstrained optimization algorithms is proposed for the estimation of the bias residue. At last, experimental results prove the analytic conclusion and estimation algorithm are correct. |
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| Keywords: | LFM range-Doppler coupling unconstrained optimization |
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