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Motion compensation of L-band SAR using GNSS-INS

机译:使用GNSS-INS的L波段SAR的运动补偿

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An experiment using the Vector Network Analyzer, modified from LiSALAB Ground-Based Synthetic Aperture Radar (GBSAR) system has been performed to evaluate the feasibility of constructing a mobile SAR system operating at L-band. Data was collected in a parking lot in Purdue University, West Lafayette. The system utilizes a GNSS-INS unit to acquire position information for assisting azimuth signal compression, and the acquired data was azimuth compressed with Range-Doppler Algorithm (RDA) [1]. We have demonstrated the feasibility of using a GNSS-INS system to correct the irregular motion of the Radar platform to improve accuracy in signal compression, resultant image with and without position correction has been shown as a comparison.
机译:使用矢量网络分析仪对LiSALAB地面合成孔径雷达(GBSAR)系统进行了修改,已进行了一项实验,以评估构建在L波段工作的移动SAR系统的可行性。数据是在西拉斐特普渡大学的一个停车场中收集的。该系统利用GNSS-INS单元来获取位置信息以辅助方位角信号压缩,并且所获得的数据已通过Range-Doppler算法(RDA)进行了方位角压缩[1]。我们已经证明了使用GNSS-INS系统校正Radar平台的不规则运动以提高信号压缩精度的可行性,并显示了带有和不带有位置校正的结果图像作为比较。

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