基于载噪比估计的解调环路参数调整策略  

Parameters Adjustment Strategy of Demodulation Loop Based on Carrier-to-Noise Ratio Estimation

作　　者：谢伟[1] 薛陈[1] 王天一 朱江 薛大勇 XIE Wei;XUE Chen;WANG Tianyi;ZHU Jiang;XUE Dayong(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China)

机构地区：[1]西南电子设备研究所,成都610036

出　　处：《电子信息对抗技术》2021年第4期109-112,共4页Electronic Information Warfare Technology

摘　　要：针对高动态、大频偏数字解调技术中的载波同步问题进行分析,提出根据频偏范围以及实际接收信号的载噪比调整跟踪环路参数的详细设计方法,并进行系统仿真。测试结果表明,跟踪环路的设计方法能够较好地满足高动态大频偏场景下的数字解调性能要求。The carrier synchronization problem in digital demodulation technology under high dynamic and high frequency offset conditions is analyzed.Based on the range of frequency offset and carrier-to-noise ratio received,a detailed design method of tracking loop parameters is proposed.In addition,the system simulation is carried out.The test results show that the tracking loop design method can better meet the high dynamic high deviation scenarios of digital demodulation performance requirements.

关 键 词：数字解调 载波同步 环路参数 高动态 大频偏 

分 类 号：TN971.1[电子电信—信号与信息处理]