GPS调零天线的数字接收机阵列  

Digital Receiver Array for GPS Nulling Antennas

作　　者：姚红超[1,2] 王华力[1] 朱家喜[2] 

机构地区：[1]解放军理工大学通信工程学院,南京210007 [2]中国人民解放军75810部队,普宁515300

出　　处：《数据采集与处理》2009年第2期248-253,共6页Journal of Data Acquisition and Processing

基　　金：国防重点实验室基金(9140C0204010806)资助项目

摘　　要：研究了GPS调零天线系统数字接收机阵列的一种高效实现方案。提出采用新型的可配置时分复用F IR滤波器组,实现了多通道数字下变频处理中的采样速率转换与滤波器系数重加载,通过对GPS调零天线系统四通道数字接收机阵列的设计实现与测试分析可以得出,此方法与多通道并行重复处理的常规数字下变频方式相比,可以节约大约60%的FPGA硬件资源,并可增强系统实现的灵活性。A high-efficiency implementation of digital receiver array for the GPS nulling antenna system is studied and a novel reconfigurable time-division-multiplexer FIR filter banks is presented. The filter banks can implement the sampling rate conversion and reload the filter coefficients in the digitized down-conversion （DDC） unit of multi-channel receivers. The 4- channel digital receiver array for the GPS hulling antenna system is established and tested. Compared the typical multi-channel DDCs with the structure of parallel repetitive processing, the method can save nearly 60% FPGA hardware resource and enhance the flexibility of the system design.

关 键 词：数字接收机阵列 GPS调零天线 现场可编程门阵列器件 有限冲激响应滤波器 时分复用 

分 类 号：TN802[电子电信—信息与通信工程]