基于FPGA的差分跳频信号频率检测技术研究  

Research on the Frequency Detection Technology of Differential Frequency Hopping Signal Based on FPGA

作　　者：张洪帅[1] 宋国伟[1] 滕振宇[1] 冯永新[1] 

机构地区：[1]沈阳理工大学信息科学与工程学院

出　　处：《电子技术（上海）》2011年第8期53-54,50,共3页Electronic Technology

基　　金：国家自然科学基金(NO.6080203);辽宁省高校创新团队项目

摘　　要：差分跳频作为一种相关跳频在通信系统中有着广泛应用,因此,对其接收系统中频率检测技术的研究至关重要。文章详细阐述了整个频率检测的工作流程并对其关键模块进行了分析,在FPGA上利用RAM IP核、FFT IP核等实现了对接收信号频率的有效检测,而且利用状态机完成了频率检测后的频率转换控制,为后续差分跳频信号的有效解调提供数据源。As the correlation frequency hopping differential frequency hopping（DFH） is widely used in communications system,so the research on the frequency detection technology in its receiving system is very important.The working flow of the whole frequency detection is described in detail,and the critical module is analyzed.The efficient detection for the frequency of the received signal is implemented with RAM IP core and FFT IP core on FPGA,and state machine is used to implement the frequency transformation control after frequency detection,so that data sources are provided for DFH signal＇s valid demodulation.

关 键 词：差分跳频 FPGA IP核 状态机 

分 类 号：TN911.7[电子电信—通信与信息系统]