顺轨双天线机载InSAR的地面运动目标检测研究
Ground Moving Target Indication Based on Along Track Airborne InSAR with Two Antennas
-
摘要: 基于高分辨率顺轨双天线机载InSAR，研究了地面运动目标检测问题。采用双通道干涉处理，抑制地面静止杂波。针对高分辨率InSAR合成孔径时间较长的特点，将运动目标成像处理的概念引入运动目标检测过程，对运动目标信号实施距离徙动校正后，再聚焦成像，从而改善检测信噪比和信杂比，并进一步提高测速精度。InSAR仿真数据的处理结果表明了该方法的有效性。Abstract: The Ground Moving Target Indication(GMTI) is investigated based on along track high resolution airborne InSAR with two antennas. The two antenna interferometric processing is used to suppress ground clutter. The concept of moving target imaging is introduced for GMTI of high resolution InSAR with longer synthetic aperture time. The range migration correction and refocus processing for moving target signals are implemented to improve the signal-noise rate and signal-clutter rate for their detection and velocity measurement. The processing results of simulated InSAR data show the effectiveness of the new method.
-
Yadin Eli. A Performance evaluation model for a two port interferometer SAR-MTI, 1996 IEEE National Radar Conference, Michigan,1996：261.266.[2]朱岱寅，朱兆达. 机载干涉SAR/ISAR对地面慢速目标成像研究[J].电子与信息学报.2003,25(5):585-浏览[3]高飞，毛士艺，玉振明，袁运能. 一种星载自动检测地面慢速运动目标方法的性能分析. 电子与信息学报，2004，26(增刊)：303.309.[4]Perry R P, Dipietro R C, Fante R L. SAR imaging of movingtargets[J].IEEE Trans on Aerospace and Electronic Systems.1999,35(1):188-[5]郑明洁. 合成孔径雷达动目标检测和成像研究. [博士论文]，中国科学院电子学研究所，2003年3月.[6]李道京，张麟兮，俞卞章. 近程SAR图像中的地面运动目标检测. 西北工业大学学报，2003，21(6)：744.748. -
计量
- 文章访问数: 2432
- HTML全文浏览量: 112
- PDF下载量: 1058
- 被引次数: 0
下载:
