【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.更多还原

【Abstract】 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.更多还原