Polynomial-rooting based fourth-order MUSIC for direction-of-arrival estimation of noncircular signals

doi:https://doi.org/10.1109/jsee.2014.00108

Open AccessArticle10.1109/jsee.2014.00108

Polynomial-rooting based fourth-order MUSIC for direction-of-arrival estimation of noncircular signals

Lei Shen,Zhiwen Liu,Xiaoming Gou,Yougen Xu-2014-12-01-Journal of Systems Engineering and Electronics

TL;DRAbstract

A polynomial-rooting based fourth-order cumulant algorithm is presented for direction-of-arrival (DOA) estimation of second-order fully noncircular source signals, using a uniform linear array (ULA). This algorithm inherits all merits of its spectral-searching counterpart except for the applicability to arbitrary array geometry, while reducing considerably the computation cost. Simulation results show that the proposed algorithm outperforms the previously developed closed-form second-order noncircular ESPRIT method, in terms of processing capacity and DOA estimation accuracy, especially in the presence of spatially colored noise.

Chat with Paper

AI Agents for this Paper

A polynomial-rooting based fourth-order cumulant algorithm is presented for direction-of-arrival (DOA) estimation of second-order fully noncircular source signals, using a uniform linear array (ULA). This algorithm inherits all merits of its spectral-searching counterpart except for the applicability to arbitrary array geometry, while reducing considerably the computation cost. Simulation results show that the proposed algorithm outperforms the previously developed closed-form second-order noncircular ESPRIT method, in terms of processing capacity and DOA estimation accuracy, especially in the presence of spatially colored noise.

Keywords

AlgorithmDirection of arrivalPolynomialComputer scienceMultiple signal classificationNoise (video)Order (exchange)Computation

Chat

Click to start Chat