一种编队卫星协作的空间天线阵列合成方法  

A Combining Method of Space Antenna Arraying Based on Collaboration of Satellites Formation

作　　者：梁迎春[1] 吴海涛[1] 李云鹤[1] 

机构地区：[1]肇庆学院电子信息与机电工程学院,广东肇庆526061

出　　处：《肇庆学院学报》2016年第2期30-36,共7页Journal of Zhaoqing University

基　　金：肇庆学院精品资源共享课程建设项目(CQ2014026)

摘　　要：针对深空信号接收信噪比较低的问题,基于地基天线组阵技术,提出了一种编队卫星协作的空间天线阵列合成方法,给出了编队卫星协作接收2路信号的合成方案;估算并分析了由编队卫星空间运动特性产生的时延差与频率差,总结了系统产生误差的因素;基于Simple相关算法原理推算了2路信号合成信噪比的数学表达式.通过仿真验证并分析了所提合成方法的性能,仿真结果表明该方法对改善深空信号接收信噪比不足的问题有一定的指导意义.To solve the problem of low signal received SNR in deep space,a combining method of space antenna arraying based on collaboration of satellites formation and ground-based antenna array technology is proposed. The combining scheme of cooperative receiving two signals from the satellites formation is given. The delay difference and frequency difference originated from the space motion of satellites formation are estimated and analyzed. And also the error components generated by the system is summarized. The mathematical expression of the combining SNR is deduced based on the principle of Simple correlation algorithm. The performance of proposed method is validated and analyzed by extensive simulation. The simulation results show that this method for improving the shortage of signal received SNR in deep space has some instructive significance.

关 键 词：天线组阵 编队卫星 协作 SIMPLE算法 深空通信 

分 类 号：TN927[电子电信—通信与信息系统]