基于循环累积量的TLS-ESPRIT测向算法

摘要

This paper describes the mathematic model of TLS-ESPRIT algorithm and the definition and properties of fourth order cumulant,and a novel TLS-ESPRIT algorithm based on cyclic fourth order cumulant is proposed. The performance figures of the novel TLS-ESPRIT algorithm and common TLS-ESPRIT are obtained by computer simulation,and the simulation results show that this new algorithm can get rid of not only Gaussian color noise but also the interference in different cyclic frequency. The operation time for the same operation by using different DOA algorithms is simulated, and the simulation results show that this algorithm has lower computational complexity.%描述了普通 TLS-ESPRIT算法的数学模型和4阶累积量的定义及性质，提出了一种基于4阶循环累积量的TSL-ESPRIT算法。使用计算机进行仿真试验，得出了该算法与普通TLS-ESPRIT算法在色噪声和干扰情况下的性能图样，验证了该算法能够有效地克服高斯色噪声和不同循环频率处干扰的影响，仿真了该算法与传统测向算法对同一问题的运算时间，证明该算法的运算量较小。