基于快速子空间分解的宽带非相干DOA估计快速算法

Fast Wideband Incoherent Signal Subspace DOA Estimation Method Based on Fast Subspace Decomposition

总结了快速子空间分解在窄带阵列到达角估计中的应用，给出了几种构造参考信号的方法。将快速子空间分解与宽带非相干信号子空间方法相结合，得到了宽带到达角估计快速方法。在性能基本保持不变的同时，新方法大大降低了运算量。仿真结果证明了算法的有效性。

The application of fast subspace decomposition in narrowband array direction-of-arrival estimation is sununarized. Some methods to produce the reference signal are given. Combined the fast subspace decomposition method with the wideband incoherent signal subspace method, a fast wideband incoherent signal subspace DOA estimation method is proposed. The new method has almost the same performance with that of the incoherent signal subspace method, but has less computation burden. Simulation results demonstrate the effectiveness of the new method.