An extended cyclic music algorithm

Many modulated communication signals exhibit a cyclostationarity (or periodic correlation) property, corresponding to the underlying periodicity arising from carrier frequencies or baud rates. By exploiting cyclostationarity, the signal direction-of-arrival estimation can be significantly improved. In this paper, we propose a new MUSIC-like [1] direction finding algorithm that exploits cyclostationarity. Our method can be considered as an extension of the Cyclic MUSIC algorithm [2].