摘要
提出了一种基于协变异矩阵的宽频段信号频率和二维到达角联合估计的算法。在冲击噪声环境下,该算法能精确地估计宽频段信号的三维参数,无需多维谱峰搜索和参数配对过程。另外,利用L型阵列的分维特点和ESPRIT算法进一步处理,成功地实现了具有频率兼并现象的宽频段信号的三维参数估计。计算机仿真结果验证了算法的有效性。
The paper presents a new covariation matrix-based method for joint estimation of frequency and 2-D arrival angles of wide-band signals.In the impulsive noise,the algorithm can precisely estimate 3-D parameters of wide-band signals.Getting rid of the costly multidimensional spectrum peak search,it has smaller computational load with parameters paired automatically.In addition,based on the separable characteristic of the L-shaped array and ESPRIT algorithm,the 3-D parameter estimation of wide-band signals with the same frequency is realized successfully.Computer simulation confirms its effectiveness.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2010年第3期487-490,共4页
Systems Engineering and Electronics
关键词
宽频段
冲击噪声
频率
到达角
协变异矩阵
wide frequency band
impulsive noise
frequency
direction-of-arrival（DOA）
covariation matrix
