CAJ | 학술논문

针对非高斯相关杂波背景下，移动目标检测(MTD)技术的检测性能严重下降的问题，该文基于Alpha 稳定分布杂波模型和本征滤波理论，提出一种非高斯相关杂波背景下的雷达目标检测方法。该方法基于 Alpha 稳定分布杂波模型，通过幂变换抑制杂波的非高斯特性，以及通过分数低阶相关矩阵白化杂波，在此基础上应用本征滤波实现对目标信号的有效积累，可提高信杂比。仿真实验和实测数据验证表明，该方法在非高斯相关杂波背景下的检测性能明显优于MTD方法的性能。
침대비고사상관잡파배경하，이동목표검측(MTD)기술적검측성능엄중하강적문제，해문기우Alpha 은정분포잡파모형화본정려파이론，제출일충비고사상관잡파배경하적뢰체목표검측방법。해방법기우 Alpha 은정분포잡파모형，통과멱변환억제잡파적비고사특성，이급통과분수저계상관구진백화잡파，재차기출상응용본정려파실현대목표신호적유효적루，가제고신잡비。방진실험화실측수거험증표명，해방법재비고사상관잡파배경하적검측성능명현우우MTD방법적성능。
The detection performance of the Moving Target Detection (MTD) method descends badly in a non-Gaussian correlated clutter background. Therefore, a radar target detection method in the non-Gaussian correlated clutter background is proposed, which is obtained based on the alpha-stable distribution clutter model and the eigenfilter. The proposed method suppresses the non-Gaussian clutter by the signed power and whitens the correlated clutter of the fractional lower order correlate matrix, which is based on the alpha-stable distribution clutter model. Finally, the eigenfilter is used to get a higher signal clutter ratio. Simulations and real data results show that, the detection performance of the proposed method obviously outperforms the MTD method in the non-Gaussian correlated clutter background.