计算机应用研究2012，Vol.29Issue(3)：974-976,3.DOI:10.3969/j.issn.1001-3695.2012.03.047
一种数字频率合成器的FPGA实现技术
Realization of direct digital frequency synthesizer based on FPGA
摘要
Abstract
The technology of direct digital frequency synthesizer ( DDS) is a technology of frequency synthesization based on look-up table, which was developed about forty years lately. As a kind of signal generator, DDS is an important part of communication system, deciding the performance of it in most degree. This paper introduced the fundamental of DDS and how to realize a DDS based on FPGA. If the waveform memory had been changed then the output wave type would be changed easily. It could be easily operated, had higher frequency separated ratio, was convenience to integrated as totally numeralization and this design was valuable in engineering application.关键词
直接数字频率合成器/信号发生器/现场可编程门阵列/相位累加器/数模转换器/Costas环Key words
DDS/ signal generator/ FPGA/ phase accumulator/ D/A converter/ Costas loop分类
信息技术与安全科学引用本文复制引用
梁琪,沈绪榜,钟升..一种数字频率合成器的FPGA实现技术[J].计算机应用研究,2012,29(3):974-976,3.基金项目
国家预研基金资助项目(2002AA7140222) （2002AA7140222）
