直接数字频率合成器非线性的整形——一种基于遗传算法的方法

2014 International Conference on Advances in Electrical Engineering (ICAEE) Pub Date : 2014-06-19 DOI:10.1109/ICAEE.2014.6838560

U. Dinesh, S. Ram, M. Hariharan, K. Hariharan

{"title":"直接数字频率合成器非线性的整形——一种基于遗传算法的方法","authors":"U. Dinesh, S. Ram, M. Hariharan, K. Hariharan","doi":"10.1109/ICAEE.2014.6838560","DOIUrl":null,"url":null,"abstract":"Even though the hardware complexity is reduced and precision is increased in the DDFS, the obtained signal is in no match with the ideal signal. This is because of the non-linearity of DACs present in the DDFS architecture. The conventional DDFS architecture doesn't account for the non-linearity of DAC which deteriorates the quality of the signal. This reduces the SNR and SFDR of the signal. This error can be reduced by the optimizing the values using Genetic algorithm.","PeriodicalId":151739,"journal":{"name":"2014 International Conference on Advances in Electrical Engineering (ICAEE)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2014-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Shaping of non linearity in direct digital frequency synthesizer - An approach by Genetic algorithm\",\"authors\":\"U. Dinesh, S. Ram, M. Hariharan, K. Hariharan\",\"doi\":\"10.1109/ICAEE.2014.6838560\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Even though the hardware complexity is reduced and precision is increased in the DDFS, the obtained signal is in no match with the ideal signal. This is because of the non-linearity of DACs present in the DDFS architecture. The conventional DDFS architecture doesn't account for the non-linearity of DAC which deteriorates the quality of the signal. This reduces the SNR and SFDR of the signal. This error can be reduced by the optimizing the values using Genetic algorithm.\",\"PeriodicalId\":151739,\"journal\":{\"name\":\"2014 International Conference on Advances in Electrical Engineering (ICAEE)\",\"volume\":\"71 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-06-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2014 International Conference on Advances in Electrical Engineering (ICAEE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICAEE.2014.6838560\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2014 International Conference on Advances in Electrical Engineering (ICAEE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICAEE.2014.6838560","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

摘要

尽管DDFS降低了硬件复杂度，提高了精度，但得到的信号与理想信号并不匹配。这是因为DDFS架构中存在的dac的非线性。传统的DDFS架构没有考虑到DAC的非线性，这会导致信号质量的恶化。这降低了信号的信噪比和SFDR。利用遗传算法对数值进行优化，可以减小该误差。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Shaping of non linearity in direct digital frequency synthesizer - An approach by Genetic algorithm

Even though the hardware complexity is reduced and precision is increased in the DDFS, the obtained signal is in no match with the ideal signal. This is because of the non-linearity of DACs present in the DDFS architecture. The conventional DDFS architecture doesn't account for the non-linearity of DAC which deteriorates the quality of the signal. This reduces the SNR and SFDR of the signal. This error can be reduced by the optimizing the values using Genetic algorithm.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

2014 International Conference on Advances in Electrical Engineering (ICAEE)

自引率

0.00%

发文量