CAJ | 학술논문

基于模式空间处理方法提出了一种不需要角度预估计的宽带空间谱估计算法,将总体最小二乘相干信号子空间算法(TLS-CSM)中的聚焦矩阵的构造方法和频率加权聚焦方法引入模式空间宽带空间谱估计算法中,结合了模式空间算法不需要角度预估计的优点和酉聚焦的无聚焦信噪比损失的特性,大大减小了聚焦过程中的信噪比损失,从而进一步提高了算法的性能.
기우모식공간처리방법제출료일충불수요각도예고계적관대공간보고계산법,장총체최소이승상간신호자공간산법(TLS-CSM)중적취초구진적구조방법화빈솔가권취초방법인입모식공간관대공간보고계산법중,결합료모식공간산법불수요각도예고계적우점화유취초적무취초신조비손실적특성,대대감소료취초과정중적신조비손실,종이진일보제고료산법적성능.
This paper proposed a wideband sources spatial spectrum estimation algorithm without initial DOA estimation based on modal space processing method which introduced the idea of total least square coherent subspace method (TLS-CSM), then we can get the advantages of the two means without the initial estimation of the DOA and the loss of SNR in focusing, thereby the performance of the method is improved further. The results of Monte Carlo simulation illustrated the effectiveness of the proposed method.