{"title":"采用多相谐波混频器的宽带柔性数字接收机","authors":"W. Namgoong","doi":"10.1109/RWS.2014.6830148","DOIUrl":null,"url":null,"abstract":"A wideband flexible digital receiver architecture suitable for software-defined and cognitive radios is presented. The receiver employs a polyphase harmonic mixer and exploits the harmonics caused by hard-switching commutating mixers to minimize the harmonic distortion in the signal path, reduce the tuning range of the frequency synthesizer, and sense a wider frequency spectrum. A robust digital equalizer in the presence of mixer gain/phase mismatch uncertainty is provided. The number of polyphase mixers needed for different operating interference environments is determined via simulation.","PeriodicalId":247495,"journal":{"name":"2014 IEEE Radio and Wireless Symposium (RWS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A wideband flexible digital receiver using polyphase harmonic mixer\",\"authors\":\"W. Namgoong\",\"doi\":\"10.1109/RWS.2014.6830148\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A wideband flexible digital receiver architecture suitable for software-defined and cognitive radios is presented. The receiver employs a polyphase harmonic mixer and exploits the harmonics caused by hard-switching commutating mixers to minimize the harmonic distortion in the signal path, reduce the tuning range of the frequency synthesizer, and sense a wider frequency spectrum. A robust digital equalizer in the presence of mixer gain/phase mismatch uncertainty is provided. The number of polyphase mixers needed for different operating interference environments is determined via simulation.\",\"PeriodicalId\":247495,\"journal\":{\"name\":\"2014 IEEE Radio and Wireless Symposium (RWS)\",\"volume\":\"54 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 IEEE Radio and Wireless Symposium (RWS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RWS.2014.6830148\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 IEEE Radio and Wireless Symposium (RWS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RWS.2014.6830148","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A wideband flexible digital receiver using polyphase harmonic mixer
A wideband flexible digital receiver architecture suitable for software-defined and cognitive radios is presented. The receiver employs a polyphase harmonic mixer and exploits the harmonics caused by hard-switching commutating mixers to minimize the harmonic distortion in the signal path, reduce the tuning range of the frequency synthesizer, and sense a wider frequency spectrum. A robust digital equalizer in the presence of mixer gain/phase mismatch uncertainty is provided. The number of polyphase mixers needed for different operating interference environments is determined via simulation.
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