摘要
阵列处理中计算简单的投影法避免了矩阵特征分解(EVD)的庞大计算量,然而仍需进行复数计算。为了进一步减小计算量,提出一种实数域中的投影法,它将投影矩阵及空间谱的计算均简化为实数的计算,从而。使阵处理的计算量大大减少,而且使估计性能保持不变。计算机模拟与实际外场实验数据的计算结果表明了算法的有效性。
Computationally simple projection methods are proposed to avoid a lot of computa-tions of eigenvalue decomposition (EVD)in array proeessing.However,the complex computa-tions are still needed in projection methods.To reduee computations further,a projection method in real region is presented.The computations of the proposed method are redueed greatly,be-cause the real computations are used in the proposed method instead of the corresponding com-plex computations Also the perfonnance of the complex projection method is kept.Computer simulation and practical experiment results show the effectiveness of the proposed method.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1994年第11期1334-1340,共7页
Acta Aeronautica et Astronautica Sinica
关键词
阵列处理
空间谱估计
雷达信号处理
航空雷达
array processing, spatial spectrum estimation,radar signal processing.