{"title":"利用CORDIC算法在FPGA中实现自适应均衡器","authors":"Bruno Chang, F. J. Aquino, C. Rocha","doi":"10.14209/sbrt.2008.42769","DOIUrl":null,"url":null,"abstract":"—In this paper we present a FPGA implementation of an adaptive equalizer using the trigonometric LMS algorithm. The trigonometric functions needed for filtering and coefficient adaptation are evaluated with CORDIC rotations. This algorithm needs a hypercube definition, in which the minima of the objective function must be contained. This paper proposes the adoption of the multisplit procedure to ease the hypercube definition. Simulations show that, when using this procedure, the algorithm converges without the need for an exaustive search for the hypercube coordinates.","PeriodicalId":340055,"journal":{"name":"Anais do XXVI Simpósio Brasileiro de Telecomunicações","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Implementação de um Equalizador Adaptativo em FPGA Utilizando o Algoritmo CORDIC\",\"authors\":\"Bruno Chang, F. J. Aquino, C. Rocha\",\"doi\":\"10.14209/sbrt.2008.42769\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"—In this paper we present a FPGA implementation of an adaptive equalizer using the trigonometric LMS algorithm. The trigonometric functions needed for filtering and coefficient adaptation are evaluated with CORDIC rotations. This algorithm needs a hypercube definition, in which the minima of the objective function must be contained. This paper proposes the adoption of the multisplit procedure to ease the hypercube definition. Simulations show that, when using this procedure, the algorithm converges without the need for an exaustive search for the hypercube coordinates.\",\"PeriodicalId\":340055,\"journal\":{\"name\":\"Anais do XXVI Simpósio Brasileiro de Telecomunicações\",\"volume\":\"29 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1900-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Anais do XXVI Simpósio Brasileiro de Telecomunicações\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.14209/sbrt.2008.42769\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Anais do XXVI Simpósio Brasileiro de Telecomunicações","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14209/sbrt.2008.42769","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Implementação de um Equalizador Adaptativo em FPGA Utilizando o Algoritmo CORDIC
—In this paper we present a FPGA implementation of an adaptive equalizer using the trigonometric LMS algorithm. The trigonometric functions needed for filtering and coefficient adaptation are evaluated with CORDIC rotations. This algorithm needs a hypercube definition, in which the minima of the objective function must be contained. This paper proposes the adoption of the multisplit procedure to ease the hypercube definition. Simulations show that, when using this procedure, the algorithm converges without the need for an exaustive search for the hypercube coordinates.