点对多点微波通信系统跳频同步的设计实现

跳频通信具有很强的抗干扰、抗衰落、抗截获能力,兼有能多址组网应用等诸多优点。跳频同步是跳频通信的技术关键,也是跳频通信系统开发的难点,只有实现了快速精确的同步,才能正确提取传递信息,发挥出跳频通信的优点。分析了点对多点微波传输及时分多址通信跳频同步的特点,结合工程中的时分多址跳频抗干扰通信技术,设计了一种基于TOD的同步方案,并利用FPGA技术实现,给出了应用过程中的跳频图案及其同步过程的详细设计。

Design and Implementation of Frequency-hopping Synchronization for Point to Multipoint Microwave Communications System

Frequency-hopping (FH) communications have strong capability of anti-jamming,anti-fading and anti-interception,and has other advantages such as multiple access networking application.Synchronization is the key technology of FH communication,and is also the big challenge of the development of FH system.Correct extraction and transmission of information and the advantages of FH communication can only be achieved when fast and accurate synchronization is realized.The paper analyzes the FH synchronization characteristics of point to multi-point microwave transmission and TDMA communication,gives the design of a TOD-based synchronization scheme based on the TDMA FH anti-jamming communication technology in engineering,and gives the detailed design of FH pattern and its synchronization process in the application process.