摘要
在软件无线电数字接收机中,为了支持多种速率的信号处理,通常采用分数倍重采样,在硬件实现时,非常耗时和耗资源,这也成为软件无线电数字接收机的难点。在分析传统实现模型的基础上,提出一种基于整数倍重采样的新方法,即按照一定的分段方法,实现多速率的多段动态处理,可以避免分数倍重采样,节省运算时间和硬件资源。通过Matlab仿真证明,该方法性能良好,实用可行,可以用于数字接收机的多速率处理系统,在其工程实现上有较大的参考意义。
Generally,non-integer re- sampling is used in a digital software radio receiver to support multi- rate signal processing,and it is very time- consuming and resource- consuming when implementing the hardware, which has also become a difficulty for the digital software radio receiver. On the basis of a traditional implementation model, a new implementation method, to realize multi -rate multi- stage processing according to a certain segmenting method is proposed, thus non- integer re-sampling can be avoided, the calculating time and hardware resource can be saved. Matlab simulation shows that the method is practicable and feasible,it can be used for a multi- rate processing system of a digital receiver.
出处
《现代电子技术》
2010年第1期46-49,54,共5页
Modern Electronics Technique
基金
国家自然科学基金资助项目(10876035)
关键词
多速率处理
整数倍重采样
分数倍重采样
数字接收机
multi - rate processing
integer re - sampling
non - integer re - sampling
digital receiver
