摘要
针对有向天线阵列对椭圆极化信号的测向问题,对椭圆极化信号的瞬时极化矢量做了空间分解,建立了有向天线阵列对信号的接收模型,提出了基于增益比估计的MUSIC算法:筛选接收数据,得到一组含有相近的极化信息的数据;通过参数估计提取出该组数据中所包含的各阵元的增益比信息;应用MUSIC算法测向。就该算法进行了计算机仿真,验证了算法的可行性,并分析了仿真结果,指出了算法的优点与不足。
In this paper,for direction finding of signals with elliptical polarization by directional circular antenna array,the spatial decomposition is implemented for the instantaneous polarization vectors of the signal,and the model is set up to be used for describing the interception of the elliptical polarization signal by directional circular array.The MUSIC algorithm based on estimated gain ratios is proposed： sieving the intercepted data;estimating the parameters of the gain ratios of the antennas from the data;finding direction with the MUSIC algorithm.At last,the simulation experiment is carried out and the algorithm is proved to be available,the result is analyzed and the evaluation of the algorithm is given.
出处
《无线电工程》
2011年第1期61-64,共4页
Radio Engineering
关键词
椭圆极化
极化分解
参数估计
MUSIC方法
elliptical polarization
polarization decomposition
parameter estimate
MUSIC method
