Cyclic root-MUSIC Based on Real-valued Decomposition
Fuli Wang · Jisuanji fangzhen · 2006
Using real-valued decomposition technique, Unitary Cyclic root-MUSIC algorithm without spectral search was proposed for multipath environment of mobile communication, by reconstructing the data model of the cyclic covariance matrix with Hermitian property, which has a better performance in the presence of multipath propagation and substantially reduces the computational complexity. The derivation of the mean square error(MSE) shows that this approach not only accurately estimates direction of arrivals (DOAs) of uncorrelated sources, but also allows to seperate highly correlated or coherent signals. Finally, the simulation results, compared with Cyclic root-MUSIC algorithm, adapt to multipath environment and have features of better performance and low computational complexity.