High Resolution DOA Estimation Algorithm based on Nonuniform L-shaped Array
Lanmei Wang, Zhihai Chen, Guibao Wang · 2013
A parameter estimation algorithm of direction of arrival (DOA), based on a nonuniform L-shaped array, is presented for plane-wave signals.According to relation of the two x-axis and y-axis subarrays, a set of rough but unambiguous direction cosines estimates in x and y direction are obtained.By disambiguating the phase ambiguities another set of precise and unambiguous direction cosines estimates in x and y direction are obtained.Without spectral peak searching, this method has advantages of the small amount of calculation and high precision.Simulation results verify the effectiveness of the algorithm.