A New Method for Simultaneously Estimating the DOA and Frequencies of Signals
Bai Shi-yu · Electronic Information Warfare Technology · 2011
A new method is presented to simultaneously estimate the DOA and frequencies of signals incident on a like L shaped array.Firstly,a time-space matrix is formed by incepted data of the array,then the noise subspace based on a new subspace algorithm can be obtain,finally,the DOA and frequencies of signals can be simultaneously obtained by spectral search.As the simple structure of the array,the method can be implemented easily;moreover,it does not need eigen-decomposition,so the calculation can be greatly reduced.The estimation of parameters has a high precision and the performance of the algorithm compares well with the MUSIC algorithm.Computer simulation results show that the method is effective.