摘要
跳频通信具有抗干扰、抗截获以及多址组网等优点,在民用通信系统中的应用越来越广泛。基于FPGA和Si4463,设计并实现了跳频语音通信系统。首先对跳频通信系统抗干扰性能进行了建模仿真和分析,得到抗全频带干扰和抗跟踪式干扰性能。提出一种简化的基于TOD(Time of day)的跳频同步方案,使用本地计数器代替精确时间产生模块(例如GPS模块),降低系统实施复杂性,节约硬件资源和成本。最后设计并实现了基于FPGA和通用射频收发芯片Si4463的跳频语音通信系统,为复杂环境下民用语音通信提供了可行的方案。
Frequency hopping communication has the advantages of anti-jamming, anti-intercept and multiple access networking, so its application is more and more extensive in civil communication systems. The frequency hopping communication system was designed and implemented based on FPGA and Si4463. The anti-jamming performance of the frequency hopping system was modeled and analyzed, and the performance of anti the whole band interference and tracking interference was presented. A simplified frequency hopping synchronization method based on TOD（Time of day） was proposed. In this method, the precise time generating module（such as GPS module） was replaced by local counters, which reduced the implementation complexity of the system and saved the hardware resources and cost. Finally, the frequency hopping voice communication system was designed and implemented based on FPGA and general RF tranceiver chip Si4463,which provided a feasible scheme to civil voice communication in complex environment.
出处
《电子设计工程》
2015年第4期144-148,共5页
Electronic Design Engineering
关键词
跳频
抗干扰
同步
TOD
Si4463
frequency hopping
anti-jamming
synchronization
time of day（TOD）
Si4463
