期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN:2347-6710
电子版ISSN:2319-8753
出版年度:2014
期号:ICIASET
页码:30
出版社:S&S Publications
摘要:In this paper, we propose two types of modern digital modulators with a hardware efficient low powerCoordinate Rotation Digital Computer algorithm(CORDIC). Proposed algorithm has two modes of operation and in thefirst mode, it generate sine and cosine carriers simultaneously with same frequency and in the second mode it is used forfast rectangular to polar coordinate conversion. We implement this algorithm in the IQ modulator and in Polar modulatorsystem and achieved more hardware and power efficient multimode and multiband transmitters for modern wirelesscommunication systems. Simulation of the proposed approach is done with Model Sim-Altera 6.6d and implemented onXilinx Virtex 7.
关键词:CORDIC; polar modulator; look up table; IQ modulator; LUT. .