CAJ | 학술논문

该文针对星载多通道高分辨率宽测绘带合成孔径雷达系统，提出一种新的运动目标检测方法。该方法首先利用波束形成方法进行杂波抑制，然后对运动目标的斜距历程进行拟合得到运动目标的运动方向。接着对杂波抑制后的数据进行聚焦处理，得到模糊的运动目标图像，并利用恒虚警检测技术检测得到所有的模糊运动目标。最后根据模糊图像的空间关系和估计出的运动方向检测出真实目标。星载仿真数据验证了该方法的有效性。
해문침대성재다통도고분변솔관측회대합성공경뢰체계통，제출일충신적운동목표검측방법。해방법수선이용파속형성방법진행잡파억제，연후대운동목표적사거역정진행의합득도운동목표적운동방향。접착대잡파억제후적수거진행취초처리，득도모호적운동목표도상，병이용항허경검측기술검측득도소유적모호운동목표。최후근거모호도상적공간관계화고계출적운동방향검측출진실목표。성재방진수거험증료해방법적유효성。
A method of Ground Moving Target Indication (GMTI) for spaceborne multi-channel High Resolution Wide Swath (HRWS) Synthetic Aperture Radar (SAR) system is presented. Firstly, the method utilizes beamforming for clutter suppression, then estimates moving target direction by fitting for the slant range of the moving target. Secondly, focusing for the clutter suppressed data is performed to obtain ambiguous images of the moving target, then all ambiguous moving targets are obtained by Constant False Alarm Rate (CFAR) detection technology. Finally, this method detects real targets according to the spatial relationships of fuzzy images and motion direction estimated. The spaceborne HRWS simulation data verifies the validity of the proposed method.