{"title":"QVSB数据传输","authors":"J.J. Poklemba, G. Mitchell, R. F. Smith","doi":"10.1109/MILCOM.2001.986031","DOIUrl":null,"url":null,"abstract":"It is well-known that conventional double-sideband (DSB) transmission is not bandwidth-efficient; and historically, in applications where bandwidth is relatively scarce, analog single-sideband (SSB) and vestigial-sideband (VSB) techniques have been used. Previously, high-definition television (HDTV) has opted to send its images digitally-employing multi-level, amplitude-shift-keyed, VSB transmission. This paper extends and broadens the digital VSB transmission concept by demonstrating the utility of quadrature-VSB (QVSB), where two independent data streams are placed on sine and cosine VSB carriers-effectively doubling the bandwidth-efficiency, at the expense of inducing a controlled form of intersymbol-interference (ISI). Classes of minimal ISI filtering families for QVSB are defined, which are more restrictive than Nyquist data shaping. Also, it is demonstrated that m-ary QVSB typically achieves the same capacity as m/sup 2/-ary QDSB, but requires significantly less E/sub b//N/sub o/.","PeriodicalId":136537,"journal":{"name":"2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2001-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"QVSB data transmission\",\"authors\":\"J.J. Poklemba, G. Mitchell, R. F. Smith\",\"doi\":\"10.1109/MILCOM.2001.986031\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"It is well-known that conventional double-sideband (DSB) transmission is not bandwidth-efficient; and historically, in applications where bandwidth is relatively scarce, analog single-sideband (SSB) and vestigial-sideband (VSB) techniques have been used. Previously, high-definition television (HDTV) has opted to send its images digitally-employing multi-level, amplitude-shift-keyed, VSB transmission. This paper extends and broadens the digital VSB transmission concept by demonstrating the utility of quadrature-VSB (QVSB), where two independent data streams are placed on sine and cosine VSB carriers-effectively doubling the bandwidth-efficiency, at the expense of inducing a controlled form of intersymbol-interference (ISI). Classes of minimal ISI filtering families for QVSB are defined, which are more restrictive than Nyquist data shaping. Also, it is demonstrated that m-ary QVSB typically achieves the same capacity as m/sup 2/-ary QDSB, but requires significantly less E/sub b//N/sub o/.\",\"PeriodicalId\":136537,\"journal\":{\"name\":\"2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2001-10-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MILCOM.2001.986031\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MILCOM.2001.986031","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
It is well-known that conventional double-sideband (DSB) transmission is not bandwidth-efficient; and historically, in applications where bandwidth is relatively scarce, analog single-sideband (SSB) and vestigial-sideband (VSB) techniques have been used. Previously, high-definition television (HDTV) has opted to send its images digitally-employing multi-level, amplitude-shift-keyed, VSB transmission. This paper extends and broadens the digital VSB transmission concept by demonstrating the utility of quadrature-VSB (QVSB), where two independent data streams are placed on sine and cosine VSB carriers-effectively doubling the bandwidth-efficiency, at the expense of inducing a controlled form of intersymbol-interference (ISI). Classes of minimal ISI filtering families for QVSB are defined, which are more restrictive than Nyquist data shaping. Also, it is demonstrated that m-ary QVSB typically achieves the same capacity as m/sup 2/-ary QDSB, but requires significantly less E/sub b//N/sub o/.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
