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

计量
- 文章访问数: 3525
- HTML全文浏览量: 153
- PDF下载量: 706
- 被引次数: 0
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.

HTML全文

参考文献(1)

Kim Luu, et al. University nanosatellite distributed satellite capabilities to support TechSat 21[C]. USA:13th AIAA/USU Conference on Small Satellites (SSC99-III-3), 1999: 1-9.[2]Ramongasie S, Phalippou L, Thouvenot E, and Massonnet D. Preliminary design of the payload for the interferometric CarWheel[C]. Proc. of IGARSS, Honolulu, 2000: 24-28.[3]Massonnet D. The interferometric cartwheel: A constellation of passive satellites to produce radar images to coherently combined[J].Int. J. Remote Sensing.2001, 22(12):2413-2430[4]林来兴.小卫星编队飞行及其轨道构成[J]. 中国空间科学技术, 2001, 21(1): 23-28.Lin Laixing. Formation flying of small satellite and its orbital configuration[J]. Chinese Space Science and Technology, 2001, 21(1): 23-28.[5]Hung E. Matrix-construction calibration method for antenna arrays. IEEE Trans.on AES, 2000, 36(3): 819-828.[6]Friedlander B, et al. Direction finding in the presence of mutual coupling[J].IEEE Trans on Antennas and Propagation.1991, 39(3):273-284[7]See C M S, et al. Parametric sensor array calibration using measured steering vectors of uncertain locations[J].IEEE Trans on Signal Processing.1999, 47(4):1133-1137[8]Ng B C, et al. Sensor-array calibration using a maximum-[9]ikelihood approach[J]. IEEE Trans on Antennas and Propagation, 1996, 44(6): 827-835.[10]刘颖, 王洪洋, 廖桂生. 多通道成像卫星误差校正方法研究[J]. 电波科学学报, 2005, 20(5): 620-624.Liu Ying, Wang Hong-yang, and Liao Gui-sheng. Calibration and remedy for multit-channel imaging satellites[J]. Chinese Journal of Radio Science, 2005, 20(5): 620-624.[11]保铮, 张玉洪, 廖桂生. 机载雷达空时二维信号处理[J]. 现代雷达, 1994, 16(2): 17-27.Bao Zheng, Zhang Yu-hong, and Liao Gui-sheng. Space-time signal processing for airborne radars[J]. Modern Radar, 1994, 16(2): 17-27.[12]Li Zhenfang, Wang Hongyang, Su Tao, and Bao Zheng. Generation of wide-swath and high-resolution SAR images from multichannel small spaceborne SAR systems[J].IEEE Geoscience and Remote Sensing Letters.2005, 2(1):82-86

施引文献

资源附件(0)

访问统计