Focusing transform-based direction-of-arrival method exploiting multi-cycle frequencies
Hung Zhitao, Jiang Wenli, Zhou Yiyu · Progress in Natural Science Materials International · 2005
When single cycle frequency is employed, the existing spectral correlation-signal subspace fitting (SC-SSF) algorithms usually contain two disadvantages: those single-cycle estimators cannot reach the best performance: it is inconvenient to be applied in practice since the right cycle frequency has to be selected. Based on the Jacobi-Anger expansion and the idea of focusing transform, a new approach exploiting multi-cycle frequencies of cyclostationary signal is discussed in this paper. Simulation results demonstrate the effectiveness of the new method.