ZENG Cao, LIAO Gui-sheng, YANG Zhi-wei, et al. Airborne Data Processing and Performance Analysis Based on Three-Aperture SAR-GMTI System Using Weighted Sample[J]. Acta Electronica Sinica, 2009, 37(3): 506-512.
ZENG Cao, LIAO Gui-sheng, YANG Zhi-wei, et al. Airborne Data Processing and Performance Analysis Based on Three-Aperture SAR-GMTI System Using Weighted Sample[J]. Acta Electronica Sinica, 2009, 37(3): 506-512.DOI:
A robust method for estimating the covariance matrix using the weighted pixels vector for the joint clutter rejection is proposed.Firstly
the pixels vector is weighted based on the value of the generalized inner product.Secondly
the locations of the ground moving targets are detected using the map of joint clutter rejection with three SAR images.Thirdly
the true locations and velocities of the targets can be obtained by the local interferometric method.Finally
the performance analysis is given.Without the threshold of the sample select and only one pixel image registration being required
the improved factor with the weighted processing is much higher than that with the unweighted processing and the improved factor of the jointed processing is better than that of the paired processing.The effectiveness and robustness of the proposed method are verified with the results of the measured airborne data.