现代雷达2017，Vol.39Issue(7)：70-74,5.DOI:10.16592/j.cnki.1004-7859.2017.07.016
基于多路并行DDS的宽带雷达信号产生技术
A Novel Wideband Radar Signal Generation Technique Based on Multiple-channel DDS in Parallel
摘要
Abstract
A wideband signal generating technique based on multiple-channel direct digital synthesis (DDS) in parallel is proposed for wideband radar signal generation.Using field programmable gate array chips,digital chirp signals are generated by the multipie-channel DDS architecture in each channel with variable phase difference at intermediate frequency.In addition,phase compensation is applied to multiple-channel signal before they are synthesized into a wideband signal at output by the high-speed digital/analog converter.Simulation and experimental results show that using the proposed technique,wideband signals can be generated at intermediate frequency in large instantaneous bandwidth at the advantages of easy implementation,high resolution in frequency and high-speed frequency conversion.关键词
宽带雷达信号/直接数字频率合成/并行处理/相位补偿Key words
wideband radar signal/direct digital synthesis/parallel processing/phase compensation分类
信息技术与安全科学引用本文复制引用
梁军,徐巍,舒汀,唐斌..基于多路并行DDS的宽带雷达信号产生技术[J].现代雷达,2017,39(7):70-74,5.基金项目
国家自然科学基金资助项目(61571294) （61571294）
航空科学基金资助项目(20142057007,2015ZD07006) （20142057007,2015ZD07006）
