Experimental Study on High-Resolution Direction-of-Arrival Estimation
Hong Ying Qin · Systems engineering and electronics · 2002
The performance and prospect in engineering applications of high resolution direction of arrival (DOA) estimation algorithms in the presence of array errors are discussed by means of experiments. An efficient Toeplitz preprocessing method for the covariance matrix of array output based on the subspace approaches is studied. This method can alleviate the effect of array errors significantly. Experiments are conducted to show the improvement in robustness and resolution as well as the high performance in precision by preprocessing.\;