CAJ | 학술논문

为了解决用于杂波抑制的直接矩阵求逆算法在外辐射源雷达工程应用中实时处理困难的问题,提出了分段并行的直接矩阵求逆算法。充分考虑了直接矩阵求逆算法的特点,将整个运算块分解为多个规模相同的子运算块,在计算统一设备架构下对这些子运算块进行并行处理,达到了提高算法处理效率的目的。实验结果表明,在采样率为200 kHz,杂波对消阶数为128的条件下,与传统的串行处理算法相比,该算法的运行效率提高了25倍,并成功用于某外辐射源雷达实时信号处理中。
위료해결용우잡파억제적직접구진구역산법재외복사원뢰체공정응용중실시처리곤난적문제,제출료분단병행적직접구진구역산법。충분고필료직접구진구역산법적특점,장정개운산괴분해위다개규모상동적자운산괴,재계산통일설비가구하대저사자운산괴진행병행처리,체도료제고산법처리효솔적목적。실험결과표명,재채양솔위200 kHz,잡파대소계수위128적조건하,여전통적천행처리산법상비,해산법적운행효솔제고료25배,병성공용우모외복사원뢰체실시신호처리중。
In order to solve the problem that the direct matrix inverse(DMI) algorithm for clutter suppression can not be real-time processing in the passive radar engineering application,a segmented parallel DMI algorithm(called P-DMI) is proposed.By considering the feature of the DMI algorithm,the entire operation block is broken up into several identical sub-blocks,and in the Compute Unified Device Architecture,these sub-blocks are processed in parallel to achieve the purpose of improving the processing efficiency.Experimental results indicate that this algorithm”s computation efficiency is raised more than 25 times compared with the traditional serial algorithm when the sampling rate is 200 kHz and the clutter cancelation order is equal to 128.Also,the method has been used in real-time signal processing for passive radar successfully.