共址重叠多网跳频通信系统研究

Networking of Cosite Frequency Hopping Communications System

针对同一平台多条同频段链路采用相同频率集同步跳频组网通信带来的电磁兼容问题,设计了一种系统的实现方法。首先采用外同步或主从同步方案确保链路之间的时间同步精度,再采用共址滤波器进行射频加固和绝对正交的跳频图案两种方法,实现链路间的电磁兼容。最后,通过合理的波形设计消除了平台间的位置不确定性和机动性带来的信号传播时延不确定性,实现了多链路同步跳频组网工作,对工程实现具有一定的指导意义。

Aiming at the electromagnetic compatibility caused by the same frequency set synchronous frequency hopping communication in the same platform, a system implementation is designed. First of all, external synchronization or master-slave synchronization scheme is adopted to ensure the accuracy of time synchronization of between the links. Then, two methods are used to realize the electromagnetic compatibility of between the links by using the common address filter for the radio frequency reinforcement and absolute nrthogonal frequency hopping pattern. Finally, the uncertainty of signal propagation delay brought by mobility and the position uncertainty of between the platforms are eliminated via reasonable waveform design, thus to realize the multi-link synchronous frequency-bopping networking, and this has certain guiding significance for engineering implementation.