全相参数字化连续波应答机的FPGA实现  

Digital FPGA implementation of continuous wave transponder with coherent phase

作　　者：方水汛 杨述华 孟明珠 孙欣 杜玲 FANG Shuixun;YANG Shuhua;MENG Mingzhu;SUN Xin;DU Ling(Beijing Research Institute of Telemetry,Beijing 100076,China;The Second Military Delegate Office of the PLA Rocket Force Armament Department in Beijing,Beijing 100076,China)

机构地区：[1]北京遥测技术研究所,北京100076 [2]火箭军装备部驻北京地区第二军事代表室,北京100076

出　　处：《遥测遥控》2019年第4期29-32,共4页Journal of Telemetry,Tracking and Command

基　　金：航天预研项目支持

摘　　要：基于宽带AD、DA以及FPGA的数字化平台,对连续波应答机的接收解调以及相参转发方案作了详细介绍。对于主载波采用FFT实现快速捕获,二阶锁频环辅助三阶锁相环实现精确跟踪。测试结果表明,相参连续波应答机测速精度可以达到0.01m/s,测距精度可以达到1m。In this paper, a digital implementation of the receiving demodulation and coherent transmitting is introduced, which is based upon ultra high-speed AD, DA and FPGA platform. The FFT is used for fast acquisition of the main carrier and the second-order frequency-locked loop assists the third-order phase-locked loop to achieve accurate tracking. The static test result shows that the velocity precision can reach 0.01m/s and the ranging precision can reach 1m.

关 键 词：连续波应答机 数字化平台 全相参 高精度测量 

分 类 号：TN914.3[电子电信—通信与信息系统]