This paper proposes a clutter suppression and parameter estimation method based on Relax algorithm. The method is fit for the multi-channel Wide Area Surveillance (WAS) GMTI system. After analyzing the components of radar echoes in WAS-GMTI mode, an iterative clutter suppression method based on Relax algorithm is designed. Compared with the reduced-dimension Space Time Adaptive Processing (STAP) algorithm, the proposed method achieves better clutter suppression results in the nonhomogeneous environment since it has no need to estimate the clutter plus noise covariance matrix. Besides, based on the clutter suppression results, precision parameters of moving targets can be obtained if the iterations are continued in the range-Doppler cells with the detected moving targets. The proposed method is validated by digital simulations.
闫贺,朱岱寅,张劲东,王旭东,李勇,毛新华,吴迪. WAS-GMTI模式下基于Relax算法的杂波抑制和参数估计方法[J]. 电子与信息学报, 2016, 38(12): 3042-3048.
YAN He, ZHU Daiyin, ZHANG Jindong, WANG Xudong, LI Yong, MAO Xinhua, WU Di. Clutter Suppression and Parameter Estimation Method in WAS-GMTI Mode Based on Relax Algorithm. JEIT, 2016, 38(12): 3042-3048.
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