分布式卫星编队的误差校正方法及运动目标检测性能分析

刘颖; 廖桂生; 张涛麟

doi:10.3724/SP.J.1146.2006.00494

分布式卫星编队的误差校正方法及运动目标检测性能分析

doi: 10.3724/SP.J.1146.2006.00494

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出版历程
- 收稿日期: 2006-04-17
- 修回日期: 2006-10-08
- 刊出日期: 2007-10-19

Error Estimation and Performance Analysis of the Distributed Satellite Formation for Moving Target Detection

摘要

摘要: 卫星基线误差及幅相误差的存在使得地面杂波对消和动目标测速及定位的性能都会严重下降。对于编队卫星基线的测量，仅仅利用测量仪器通常只能达到分米级的测量精度，可以利用信号处理的方法进一步估计并校正阵列误差。该文介绍了一种新的阵列误差校正方法，并着重分析在该方法估计精度的基础上，利用空时二维自适应处理的方法进行运动目标检测的性能，最后通过仿真实验验证了分析结果。
- 运动目标检测;误差校正;空时二维自适应处理
Abstract: The baseline error and gain and phase error of satellites have a great influence on the clutter cancellation and moving target relocation. As for the measurement of satellite baselines, only an order of decimeter precision can be obtained just by instruments. Fortunately, the error can be estimated and corrected by signal processing. In this paper, a new estimation method is proposed. The performance of moving target detection by space-time adaptive processing is analyzed on the basis of the precision offered by this estimation method. Finally, its validity is illustrated through computer simulations.

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