基于System Generator的测频算法快速实现  

Fast Realization of Frequency Estimation Algorithm Based on System Generator

作　　者：冉小刚[1] 冯全源[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《微电子学与计算机》2013年第7期103-106,共4页Microelectronics & Computer

基　　金：国家自然科学基金重大项目(60990320;60990323;61271090);国家"八六三"计划项目(2012AA012305);四川省科技支撑计划项目(2012GZ0101);成都市科技计划项目(12DXYB347JH-002)

摘　　要：超宽带接收机系统需要对工作频谱范围进行全景扫描来确定信号的载波频率,而载波频率的估计算法有很多,本文根据通信信号的特点选择了性能良好的频率居中法,详细介绍了算法的模型搭建过程,并利用Xilinx集成设计工具System Generator将其在FPGA上实现.仿真及硬件测试结果表明,在中等信噪比(10dB)情况下,测频结果误差较小.该设计具有较好的实用性.The panorama scanning is been needed to UWB receiver system to determine the carrier frequency of signal,and there has a lot of carrier frequency estimation algorithms.In this paper,we chose frequency center method according to its good performance for communication signals.The process to build the algorithm model has been detailed,Frequency measurement and hardware construction by integrated design tool System Generator of Xilinx are also implemented.In the medium signal-to-noise ratio（10dB）cases,the simulation and hardware test results shown a good accuracy.The design has a Good practicality.

关 键 词：超宽带接收机 信号检测 频率居中法 集成设计工具 现场可编程逻辑门阵列 全景扫描 

分 类 号：TN911.7[电子电信—通信与信息系统]