Subspace‐based direction‐of‐arrival estimation using centro‐symmetrical arrays
Feng‐Gang Yan, Tao Jin, Ming Jin, Yi Shen · Electronics Letters · 2016
A fast algorithm is presented to dramatically reduce the complexity of the multiple signal classification (MUSIC) algorithm with centro‐symmetrical arrays. The proposed method requires only real‐valued computations with a limited spectral search over half of the angular field‐of‐view, and the dimension of the noise subspace and that of the search vector are reduced, leading to about 96.875% complexity reduction as compared with MUSIC. Simulations show the new estimator performs well at low signal‐to‐noise ratio and with a small number of snapshots.