跳频同步信号的干扰仿真研究

Simulation Research on Jamming of FH Synchronous Signal

跳频信号的同步过程是跳频通信系统的关键。一旦同步信号被干扰,整个跳频系统将无法正常工作。在分析了跳频同步信号侦收的可行性及目前干扰跳频同步信号方法的局限性的基础上,提出了一种新的干扰方法——部分驻留时间干扰,并将干信驻留时间比作为影响跳频同步信号的又一重要指标。仿真结果表明该干扰方法可在较小干扰功率下有效干扰跳频同步信号。

Synchronization is the key of frequency hopping （FH） communication system. Once synchronous signals are jammed, frequency hopping communication system can not work normally. Based on feasibility analysis of detecting and receiving FH synchronous signals and localization analysis of current method to jam FH synchronous signals, a new jamming method——part time-resident interference was put forward, and the ratio of jamming-to-signal time- resident was regarded as another important index to jam FH synchronous signals. Simulation result shows that this method can jam FH synchronous signals effectively with less power.