Abstract
In this paper, we investigate the directions-of-arrival (DOA) estimation of coherent narrow-band signals by exploiting the spatial and temporal properties of impinging communication signals. To improve the signal detection capability and to reduce the computational burden, a new cyclic approach is proposed by combining the linear prediction with a uniform linear array. In this approach, the evaluation of cyclic array covariance matrix can be avoided, and the difficulty of choosing an optimal lag parameter is overcome by utilizing multiple lags. As a result, the advantage of the presented method is twofold: relatively computational simplicity and significantly improvement of estimation performance. The effectiveness of the proposed approach is demonstrated and compared with the ordinary methods through numerical examples.
