BTID系统数字中频接收机设计  

Design of a Digital IF Receiver in the BTID System

作　　者：尹川[1] 

机构地区：[1]中国西南电子技术研究所,成都610036

出　　处：《现代雷达》2013年第8期75-79,共5页Modern Radar

摘　　要：针对BTID典型信号特点,在传统中频接收机的基础上提出了一种基于FPGA的数字化中频接收机设计方法。介绍了数字接收机的工作原理,分析研究了数字正交解调、数字相关解扩和Viterbi译码算法等关键技术,给出了仿真结果。应用结果表明,接收机满足指标要求,并且结构灵活,抗干扰能力强。Focused on typical signal characteristics of BTID, a digitized IF receiver design method with help of FPGA is proposed based on conventional IF receiver. Operational principle of digital receiver is introduced. Digital quadrature demodulation, correlation de-spreading, viterbi decoding and corresponding key technique are analyzed. Simulation result is given. In practical application, specifications of receiver can meet requirements with flexible structure and strong anti-jamming capability.

关 键 词：战场目标识别装置 中频接收机 数字正交解调 数字相关解扩 VITERBI译码 

分 类 号：TN97[电子电信—信号与信息处理] TN858[电子电信—信息与通信工程]