摘要
对于宽带数字阵列雷达,通道之间的幅相特性不一致性(通道失配)严重影响了雷达阵列信号处理的性能,通道均衡是补偿通道失配的一种方法。基本的通道均衡算法可以一定程度补偿通道失配。为了改进基本的通道均衡算法性能,给出了一种参考通道幅度响应加权最小二乘拟合通道均衡频域算法,并通过仿真和实验,对该算法的性能进行了验证。仿真结果表明,该新算法与基本算法相比可以获得更好的幅度和相位一致性,其性能与理想均衡效果更接近。
The frequency dependent interchannel mismatch may severely degrade the wideband digital array＇s performance unless some form of compensation is employed. The compensation can be achieved by means of channel equalization. In this paper, a new weight least square fitting method based on frequencydomain-based equalization is presented. Its performance is tested by computer simulation and experiment data. The results show that better magnitude and phase consistence is achieved compared to the original algorithm, and the performance of this method is similar with that of ideal channel equalization.
出处
《雷达科学与技术》
2008年第6期463-466,共4页
Radar Science and Technology
关键词
通道失配
均衡
加权最小二乘拟合
channel mismatch
equalization
weight least squares fitting algorithm
