重庆邮电大学学报（自然科学版）2011，Vol.23Issue(1)：65-70,6.DOI:10.3979/j.issn.1673-825X.2011.01.014
一种基于DDS和PLL的Chirp超宽带信号源设计与实现
Design and implementation of an ultra-wideband Chirp signal source based on DDS and PLL
摘要
Abstract
Chirp ultra-wideband has the advantages such as peak to average power ratio close to 1, strong ranging positioning capability, and it can effectively solve the problems of traditional UWB technology such as large PAPR, short transmission distance. One of the key technology in this communication system is to design Chirp UWB signal. This paper proposed a high performance Chirp UWB signal generator method, by using the FPGA (field-programmable gate array) to control of DDS (direct digital synthesizer) chip AD9956 produced low-frequency Chirp signal, and then combined it with phase-locked loop (PLL) technology to implement the bandwidth expansion, thus gained Chirp UWB signal. Experiments show that the design of Chirp UWB signal source has the advantages such as simple structure, scalablity, programmability high performance, and practicality.关键词
超宽带/Chirp 信号/直接数字频率合成(DDS)/锁相环(PLL)Key words
ultra-wideband ( UWB )/ Chirp signal/ direct digital synthesizer(DDS)/ phase locked loop ( PLL )分类
信息技术与安全科学引用本文复制引用
刘健余,林基明,樊孝明,章兴良,徐兴华..一种基于DDS和PLL的Chirp超宽带信号源设计与实现[J].重庆邮电大学学报（自然科学版）,2011,23(1):65-70,6.基金项目
广西区科学基金资助项目(0991018Z,0731025) （0991018Z,0731025）
