{"title":"一类复扩展序列的Wigner分布","authors":"D. van Wyk, M. Lotter, L. Linde","doi":"10.1109/COMSIG.1993.365864","DOIUrl":null,"url":null,"abstract":"In this paper the time-frequency (TF) characteristics, e.g. time-varying spectrum instantaneous frequency and time spread or multipath (MP), of a class of complex perfect-squares minimum-phase (PS-MP) constant-amplitude-zero-autocorrelation (CAZAC) sequences are investigated by means of variants of the quadratic time/frequency Wigner distribution (WD), with specific emphasis on the so called pseudo Wigner distribution (PWD). An appropriate discrete PWD (DPWD) algorithm is then employed to extract characteristic channel parameters (e.g. time spread or MP and frequency spread or Doppler) of typical simulated multipath channels, from the complex probing sequences. Simulation results are presented to illustrate the advantages of the DPWD approach.<<ETX>>","PeriodicalId":398160,"journal":{"name":"1993 IEEE South African Symposium on Communications and Signal Processing","volume":"66 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"On the Wigner distribution of a class of complex spreading sequences\",\"authors\":\"D. van Wyk, M. Lotter, L. Linde\",\"doi\":\"10.1109/COMSIG.1993.365864\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper the time-frequency (TF) characteristics, e.g. time-varying spectrum instantaneous frequency and time spread or multipath (MP), of a class of complex perfect-squares minimum-phase (PS-MP) constant-amplitude-zero-autocorrelation (CAZAC) sequences are investigated by means of variants of the quadratic time/frequency Wigner distribution (WD), with specific emphasis on the so called pseudo Wigner distribution (PWD). An appropriate discrete PWD (DPWD) algorithm is then employed to extract characteristic channel parameters (e.g. time spread or MP and frequency spread or Doppler) of typical simulated multipath channels, from the complex probing sequences. Simulation results are presented to illustrate the advantages of the DPWD approach.<<ETX>>\",\"PeriodicalId\":398160,\"journal\":{\"name\":\"1993 IEEE South African Symposium on Communications and Signal Processing\",\"volume\":\"66 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1993-08-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"1993 IEEE South African Symposium on Communications and Signal Processing\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/COMSIG.1993.365864\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"1993 IEEE South African Symposium on Communications and Signal Processing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMSIG.1993.365864","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
On the Wigner distribution of a class of complex spreading sequences
In this paper the time-frequency (TF) characteristics, e.g. time-varying spectrum instantaneous frequency and time spread or multipath (MP), of a class of complex perfect-squares minimum-phase (PS-MP) constant-amplitude-zero-autocorrelation (CAZAC) sequences are investigated by means of variants of the quadratic time/frequency Wigner distribution (WD), with specific emphasis on the so called pseudo Wigner distribution (PWD). An appropriate discrete PWD (DPWD) algorithm is then employed to extract characteristic channel parameters (e.g. time spread or MP and frequency spread or Doppler) of typical simulated multipath channels, from the complex probing sequences. Simulation results are presented to illustrate the advantages of the DPWD approach.<>
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