一种支持任意码率的PCM-FM遥测接收机设计  

Design of PCM-FM telemetry receiver supporting arbitrary bit rate

作　　者：王仁智 吴江波 张春泽 WANG Renzhi;WU Jiangbo;ZHANG Chunze(Tianjin Xunlian Technology Co.,Ltd.,Tianjin 300308,China)

机构地区：[1]天津讯联科技有限公司,天津300308

出　　处：《遥测遥控》2022年第6期89-95,共7页Journal of Telemetry,Tracking and Command

摘　　要：PCM-FM调制技术是遥测系统中应用最广泛的调制体制,遥测接收机是遥测系统的重要单机。针对目前遥测接收机系统复杂、体积笨重、操作不便、采购成本高昂的痛点,设计了一款通用便携遥测接收机,采用了任意采样率转换技术、坐标旋转数字计算方法 CORDIC(Coordinate Rotation Digital Computer)鉴频、多普勒频移控制技术和位同步控制技术,具有硬件资源消耗少、支持任意码率可调、易于集成和小型化设计等优点。PCM-FM modulation is the most widely used modulation in telemetry system,and telemetry receiver is an important part of telemetry system.Aiming at the pain points of complex telemetry receiver system,bulky volume,inconvenient operation and high procurement cost,a portable general telemetry receiver is designed,which adopts arbitrary sampling rate conversion technology,CORDIC frequency discrimination technology,Doppler frequency shift control technology and bit synchronization control technology have many characteristics,such as less hardware resource consumption,supporting arbitrary bit rate adjustment,easy integration and miniaturization design.

关 键 词：遥测接收机 PCM-FM 零中频 CORDIC鉴频 自动频率控制 

分 类 号：V556.1[航空宇航科学与技术—人机与环境工程]