Robust direction of arrival estimating algorithm for cyclostationary signals
Shen Zhen-kang · Journal of China Institute of Communications · 2005
In communication system area, almost all signals exhibit a statistical property called cyclostationarity. Exploiting cyclostationarity can improve the direction finding performance of existing methods. However, those improved algorithms suffer from severe performance degradation even if there is a small mismatch in the cycle frequency error. In this paper, the performance of theBFatalgorithm is first evaluate in the presence of cycle frequency error, a robust methodRIBF-atis then proposed based on the previous analysis. Simulations show that the proposed algorithm enhances the robustness to the cycle frequency error.