{"title":"用于符号率音调生成的四功率包络检测器的性能","authors":"D. Reed, M. Wickert","doi":"10.1109/ICC.1988.13697","DOIUrl":null,"url":null,"abstract":"The use of a fourth-law envelope detector followed by a bandpass filter for detection of the symbol rate of a digitally modulated signal is investigated. The detector output spectrum is found and the output SNR is then used as a measure of performance. The effect of signal pulse shape, i.e. bandlimiting, on performance is studied. The performance of the fourth-law circuit, compared to that of a square-law device, is better for small excess bandwidth and high input SNR. However, it has a null in performance which depends on the pulse shape and the input SNR.<<ETX>>","PeriodicalId":191242,"journal":{"name":"IEEE International Conference on Communications, - Spanning the Universe.","volume":"15 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Performance of a fourth-power envelope detector for symbol-rate tone generation\",\"authors\":\"D. Reed, M. Wickert\",\"doi\":\"10.1109/ICC.1988.13697\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The use of a fourth-law envelope detector followed by a bandpass filter for detection of the symbol rate of a digitally modulated signal is investigated. The detector output spectrum is found and the output SNR is then used as a measure of performance. The effect of signal pulse shape, i.e. bandlimiting, on performance is studied. The performance of the fourth-law circuit, compared to that of a square-law device, is better for small excess bandwidth and high input SNR. However, it has a null in performance which depends on the pulse shape and the input SNR.<<ETX>>\",\"PeriodicalId\":191242,\"journal\":{\"name\":\"IEEE International Conference on Communications, - Spanning the Universe.\",\"volume\":\"15 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1988-06-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE International Conference on Communications, - Spanning the Universe.\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICC.1988.13697\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE International Conference on Communications, - Spanning the Universe.","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICC.1988.13697","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance of a fourth-power envelope detector for symbol-rate tone generation
The use of a fourth-law envelope detector followed by a bandpass filter for detection of the symbol rate of a digitally modulated signal is investigated. The detector output spectrum is found and the output SNR is then used as a measure of performance. The effect of signal pulse shape, i.e. bandlimiting, on performance is studied. The performance of the fourth-law circuit, compared to that of a square-law device, is better for small excess bandwidth and high input SNR. However, it has a null in performance which depends on the pulse shape and the input SNR.<>