DUC就是将本振频率和信号频率相加DUC的输出为0.2MHz-DUC数字上变频设计-Verilog - IMDN开发者社群-imdn.cn" /> DUC就是将本振频率和信号频率相加DUC的输出为0.2MHz,为本振和信号频率相加,-0.2MHz为镜像频率。其主要功能包括三个方面:第一是变频,数字混频器将数字中频信号和数控振荡器(NCO)产生的正交本振信号相乘,生成I/Q两路混频信号,将感兴趣的信号下变频至零中频;第二是低通滤波,滤除带外信号,提取有用信号;第三是采样速率转换,降低采样速率,以利于后续信号处理,大抽取因子范围提供了可设计成宽带或窄带数字信道的能力-IMDN开发者社群-imdn.cn"> DUC就是将本振频率和信号频率相加DUC的输出为0.2MHz,为本振和信号频率相加,-0.2MHz为镜像频率。其主要功能包括三个方面:第一是变频,数字混频器将数字中频信号和数控振荡器(NCO)产生的正交本振信号相乘,生成I/Q两路混频信号,将感兴趣的信号下变频至零中频;第二是低通滤波,滤除带外信号,提取有用信号;第三是采样速率转换,降低采样速率,以利于后续信号处理,大抽取因子范围提供了可设计成宽带或窄带数字信道的能力 - IMDN开发者社群-imdn.cn">
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DUC数字上变频设计

于 2022-06-30 发布 文件大小:9.17 kB
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上变频

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