CAJ | 학술논문

在方位多通道合成孔径雷达(SAR)体制下，针对近岸水面区域出现的强模糊地杂波抑制问题，该文分析推导了模糊杂波的多通道导向矢量，建立了近岸水面区域的SAR图像域多通道信号模型。以推导的导向矢量和建立的模型为依据，提出了适合近岸水面区域的模糊杂波抑制方法，分析了方位多通道空域采样带来的空域模糊对模糊杂波的影响，在此基础上，对该类背景下的动目标检测性能进行了仿真分析。仿真实验验证了该算法的有效性。
재방위다통도합성공경뢰체(SAR)체제하，침대근안수면구역출현적강모호지잡파억제문제，해문분석추도료모호잡파적다통도도향시량，건립료근안수면구역적SAR도상역다통도신호모형。이추도적도향시량화건립적모형위의거，제출료괄합근안수면구역적모호잡파억제방법，분석료방위다통도공역채양대래적공역모호대모호잡파적영향，재차기출상，대해류배경하적동목표검측성능진행료방진분석。방진실험험증료해산법적유효성。
To deal with the clutter suppression issue in the moving target detection for the near-shore water regions with azimuth multichannel SAR systems, the multichannel steering vector of the ambiguous clutter is derived, and the multichannel signal model of the near-shore water regions in image domain is established. Based on the derived steering vector and the established signal model, ambiguous clutter suppression methods suitable for the near-shore water regions are proposed. The impact of the spatial ambiguity which is induced by the sampling with multiple channels, on the ambiguous clutter is analyzed. Then, the simulation analysis of the Ground Moving Target Indication (GMTI) performance for the near-shore water region is given. The validities of the proposed methods are verified by the simulation results.