Abstract:

The automobile-based synthetic aperture radar (AutoSAR) system is flexible and has a low experimental cost. The research results based on AutoSAR can be applied to spaceborne and airborne SAR systems. In order to calibrate the automobile-based fully polarimetric interferometric SAR(InSAR) system channel errors, one solution to extract and correct the amplitude-phase errors in and between polarimetric channels is proposed. The solution can accomplish the extraction and correction of system errors using the point and distributed  targets. It does not need the internal calibration signal and is easy to be realized. The experimental results based on real data show that the system channel errors are well calibrated, which verifies the effectiveness of the proposed solution.