一种多分量chirp信号阵列检测新方法

Novel Array Detection Method of Multicomponent Chirp Signal

摘要:

提出了一种多分量chirp信号检测与参数估计的新方法。该方法利用天线阵列的空间特性,通过阵列平均在分数阶傅里叶域中引入加权函数来降低噪声、抑制不同源信号之间的相互干扰。和单阵元方法相比,文中方法大大提高了多分量chirp信号检测和参数估计的性能,仿真结果证明了方法的有效性。

Abstract:

In this paper, a new method was proposed for detection and parameter estimation of multicomponent chirp signal, which utilized the spatial characteristic of the antenna array. By the introduction of weighting in the fractional Fourier domain, this proposed method effectively suppressed the noise and interactions of the source signals, and achieved better performance than the known method for one cell. The simulation results verified the feasibility and efficiency of the proposed method.