JIN Yong, CHENG Yun-zhi, ZHOU Ke. Wideband targets beam-space DOA estimation based on genetic algorithm[J]. 2008, (7): 53-55+58. DOI: 10.13873/j.1000-97872008.07.009.
A new wideband beam-space DOA estimation approach based on genetic algorithm is proposed.Frequency invariant beamformer transform matrix is designed by using fast Fourier transform.Array data is transformed to beam-space using this matrix.The beam-space genetic algorithm is applied in beam-space to estimate DOA of wideband signals.The simulations show that beam-space genetic algorithm has higher resolution
smaller mean square error better than sub-space algorithm
maximum likelihood algorithm and array genetic algorithm in low SNR ranges.