摘要
介绍了软件无线电及其关键技术采样率转换的原理;回顾已有的频率转换方法,提出改进;比较几种不同的farrowstructure的特点,结合软件无线电的需要,选择一种合适的结构实现软件无线电中的采样率转换;进行实例设计,并对结果进行比较,包括硬件消耗,频率响应,脉冲响应.
The principles of the software radio and its key technique, i.e., sample rate conversion (SRC) are presented. Meanwhile the existing rate conversion methods are reviewed and the improvement is suggested. Based on the comparison of the characteristics of several farrow structures and the need of software radio, a suitable structure is chosen to implement SRC in software radio. Finally an example is given and compared the results including hardware cost, frequency response and impulse response are discussed.
出处
《复旦学报（自然科学版）》
CAS
CSCD
北大核心
2005年第1期178-182,共5页
Journal of Fudan University：Natural Science
关键词
软件无线电
采样率
频率转换
频率响应
脉冲响应
原理
关键技术
硬件
software radio
sample rate conversion (SRC)
polynomial-based filters
farrow structure
digital front-end
