Research on Wideband Signal Direction of Arrival Estimation Algorithms
Junhui Zhang · Computer Technology and Development · 2009
Coherent signal-subspace method(CSM) had been the hot spots of wideband signal direction of arrival(DOA) estimation.First the model of broadband array signal was established.On the basis,analyze several CSM algorithms which use different focusing matrixes.Analyze and compare the performance of a variety of methods in theory,also validate the effectiveness of wideband DOA estimation algorithms by computer simulations.The simulation results show that CSM has a good performance of resolution.Under the condition of low SNR,CSM still has a certain ability to distinguish signals,but it needs the forecast of signals position.