基于Farrow内插的码偏信号产生算法及其实现  

Research and implementation of code deviation signal generation algorithm based on Farrow interpolation

作　　者：杨朝君 YANG Zhaojun(The School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学信息与电子学院,北京100081

出　　处：《电视技术》2019年第1期54-59,共6页Video Engineering

摘　　要：码偏可调的信号源是高动态接收机研制过程中的重要测试设备,基于插值重采样原理,设计了一种码偏信号产生算法,Matlab仿真验证了算法的准确性,采用软件无线电技术,在FPGA+DAC的硬件平台上实现了该算法,给出了系统整体设计方案,详细阐述了系统关键部分的实现及重要参数设置的依据,并给出仿真及实测的结果,结果证明,此方法产生的码偏信号准确可靠,并大大节省了存储资源,具有较大的应用价值。The signal source with adjustable code deviation is an important test equipment in the research of high dynamic receiver.Based on the principle of interpolation and resampling,a code deviation signal generation algorithm is designed.The accuracy of the algorithm is verified by Matlab simulation.The algorithm is implemented on the hardware platform of FPGA+DAC using software radio technology.,and the design scheme of the system is given.The realization of key parts of the system and the basis of important parameter setting are expounded in detail,and the results of simulation and actual measurement are given.The result proves that code deviation signal generated by this method is accurate and reliable,and greatly saves storage resources,and has great application value.

关 键 词：多普勒偏移 Farrow插值滤波器 现场可编程门阵列 

分 类 号：TN91[电子电信—通信与信息系统]