全数字接收机中一种简化的插值滤波器的设计与实现  

Design and Implementation of Simplified Interpolation Filter for All Digital Receiver

作　　者：王建锋 邓军[2] 杨路路[2] 

机构地区：[1]中国移动陕西渭南分公司,渭南714000 [2]西安电子科技大学电子工程学院,西安710071

出　　处：《无线通信技术》2015年第1期15-18,23,共5页Wireless Communication Technology

摘　　要：插值滤波器是实现全数字接收机中码元同步算法的关键技术。本文主要探求一种适合于硬件实现的插值滤波器结构,即拉格朗日立方插值滤波器的Farrow结构,并对该结构进行简化以降低其复杂度,并对该算法结构进行了仿真,且在FPGA上实现。仿真与实现结果表明,该结构能达到预期的效果。Interpolation filter is the key to implement symbol synchronization for all digital receiver. The paper researches a structure of interpolation filter to hardware implementation. It is Farrow structure of Lagrange interpolation filter. Based on the analysis and research , the structure is sim- plified to reduce its complexity. It is simulated and realized for FPGA. The results show that the structure has achieved the desired effect.

关 键 词：全数字接收机 FPGA 插值滤波器 FARROW结构 

分 类 号：TN914.4[电子电信—通信与信息系统]