Joint diagonalization DOA matrix method in impulsive noise environments
Xia Tieqi, Qun Wan, You Zhijun, Xuegang Wang · Chinese Journal of Radio Science · 2008
A novel joint diagonalization fractional lower order moment(FLOM) DOA matrix method is proposed to estimate the higher 2-D DOA of uncorrelated narrowband signals with high resolution in the presence of impulsive noise.The method constructs three subarrays by exploiting the special structure of the array,thereby obtains the two-dimensional(2-D) DOA of the array based on joint diagonalization directly with neither peak search nor pair matching.The new method can handle sources with common 1-D angles.Simulation results show that the proposed method yields better performance than the robust covariation DOA matrix method.