中文摘要：

将传播算子与宽带相干信号子空间方法相结合，推导了基于传播算子的宽带相干信号子空间方法，该方法所构造的聚焦矩阵不需要奇异值分解，在获取噪声子空间时不需要特征值分解，因而大大降低了运算量。比较了双边变换（TCT）方法与所推导的方法在分辨两个相邻较近信号源时的性能，仿真表明，在高信噪比时，该方法性能与TCT方法相近。

英文摘要：

A new DOA estimation algorithm for wideband sources is introduced. The method is based on the combination of propagator method and coherent signal subspace method. The focusing matrix of the new method needn＇t singular value decomposition. When getting noise subspace, the new method needn＇t eigenvalue decomposition. The method for resolving two closely spaced sources is compared with the two-sided correlation transformation （TCT） method. Simulation results demonstrate the performance of the method is near that of TCT under high SNR.