多通道射频数字化接收组件的设计与实现  

Design and Implementation of Multichannel Digital RF Receiver

作　　者：张月[1] 杨剑[1] 鲍庆龙[1] 陈曾平[1] 

机构地区：[1]国防科技大学ATR重点实验室,长沙410073

出　　处：《数据采集与处理》2010年第5期666-671,共6页Journal of Data Acquisition and Processing

基　　金：国防预研基金资助项目

摘　　要：数字接收组件是数字阵列雷达(DAR)的关键部件之一,其性能直接影响雷达系统的整体性能。本文在研究关键技术的基础上设计并实现了一个四通道射频数字化接收组件。首先分析了ADC性能参数对射频前端设计的影响以及前端器件参数的选择问题;然后给出了一种有效的分布式电源设计方案,设计了一种合理的地平面分割方法,提出了一种有效的数据位对齐方法用于接收ADC输出;最后研究了多通道同步的设计和测试技术。接收组件测试结果验证了本文设计方法的有效性。The digital receiver module is a key component of digital array radar（DAR）,and its performance exerts a direct influence on the performance of the radar system.A RF digital receiver module of four-channel is designed and realized based on the key technologies.Firstly,the influence of ADC parameters on the design of RF front and the parameter selections of RF front components are analyzed.Then,an effective design of the distributed power supply and a proper separation method of ground plane are given.An effective method for the data alignment is put forward to receive the ADC output data steadily.Finally,the design and the test of multichannel synchronization are studied.Test results of the receiver module demonstrate the effectiveness of the method.

关 键 词：数字接收组件 射频数字化 高速ADC 同步采集 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]