超导系统信号检测器的数字下变频处理器研究  

Research on Digital Down Conversion Processor of Superconducting System Signal Detector

作　　者：吴林 史建华 张镘 Wu Lin;Shi Jianhua;Zhang Man(Zhuhai Bowen Education Technology Development Co., Ltd, Zhuhai Guangdong 519000, China;Neusoft Group Ltd, Shengyang Liaoning 110179, China)

机构地区：[1]珠海博闻教育科技发展有限公司,广东珠海519000 [2]东软集团,辽宁沈阳110179

出　　处：《山西电子技术》2021年第4期79-81,共3页Shanxi Electronic Technology

摘　　要：数字下变频处理器是超导磁共振系统信号检测器的核心组成部分,对检测信号的动态范围有至关重要的作用。本文在对数字下变频的原理分析的基础上,对基于FPGA实现的数字下变频处理器经过验证测试,证明本文基于FPGA实现的数字下变频处理器符合超导系统的指标需求。The digital down-conversion processor is the pivotal component of the signal detector of the superconducting magnetic resonance system,and plays a vital role in the dynamic range of the detection signal.Based on the analysis of the principle of digital down-conversion,this paper implements the algorithm of the digital down-conversion processor based on FPGA.After actual verification and testing,it is proved that the digital down-conversion processor based on FPGA in this paper meets the requirements of superconducting system.

关 键 词：信号检测 数字下变频 积分梳妆滤波器 有限长单位冲激响应滤波器 

分 类 号：TN92[电子电信—通信与信息系统]