{"title":"复杂子采样混频器I/Q相位误差的数字校正方法","authors":"K. Pun, J. Franca, C. Azeredo-Leme","doi":"10.1109/SSMSD.2000.836467","DOIUrl":null,"url":null,"abstract":"Complex sub-sampling mixers are used in various kinds of image rejection receiver. The image rejection performance of these receivers is mainly limited by I/Q phase error. A digital calibration technique is proposed in this paper to correct this error. The phase error is measured by a statistical method with a local test signal, and is corrected in the baseband digital domain. With this method, the image rejection performance can be improved as much as 20 dB as indicated by high level simulation results.","PeriodicalId":166604,"journal":{"name":"2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390)","volume":"220 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"A digital method for the correction of I/Q phase errors in complex sub-sampling mixers\",\"authors\":\"K. Pun, J. Franca, C. Azeredo-Leme\",\"doi\":\"10.1109/SSMSD.2000.836467\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Complex sub-sampling mixers are used in various kinds of image rejection receiver. The image rejection performance of these receivers is mainly limited by I/Q phase error. A digital calibration technique is proposed in this paper to correct this error. The phase error is measured by a statistical method with a local test signal, and is corrected in the baseband digital domain. With this method, the image rejection performance can be improved as much as 20 dB as indicated by high level simulation results.\",\"PeriodicalId\":166604,\"journal\":{\"name\":\"2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390)\",\"volume\":\"220 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-02-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SSMSD.2000.836467\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2000 Southwest Symposium on Mixed-Signal Design (Cat. No.00EX390)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SSMSD.2000.836467","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A digital method for the correction of I/Q phase errors in complex sub-sampling mixers
Complex sub-sampling mixers are used in various kinds of image rejection receiver. The image rejection performance of these receivers is mainly limited by I/Q phase error. A digital calibration technique is proposed in this paper to correct this error. The phase error is measured by a statistical method with a local test signal, and is corrected in the baseband digital domain. With this method, the image rejection performance can be improved as much as 20 dB as indicated by high level simulation results.
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