Performance analysis of coherent subspace methods for direction of arrival estimation
Na Guo · Transducer and Microsystem Technologies · 2010
The model of broadband array signal is established.Then,several coherent signal-subspace method(CSM)algorithms which use different focusing matrixes are discussed.The mean square error(MSE)of those methods is compared with Cramer-Rao Bound(CRB)by computer simulations.Results show that MSE of CSM methods decrease with increase signal-to-noise ratio(SNR).Moreover,the MSE of two-sided correlation transformation(TCT)method is close to CRB at high SNR.