中文摘要：

同步技术是跳频通信的关键技术之一。重点分析跳频通信同步方法中的同步字头法,在跳频通信原理的基础上,分析同步字头法实现同步的原理。针对同步字头容易暴露和易受干扰的特点,提出一种新的利用系统频率表的索引号来实现跳频同步的方法,研究同步序列的格式并且对其同步性能进行分析。最后利用Matlab的Simulink工具对其实现仿真,同时为了更加方便地修改模型中的参数以及绘制仿真得到的波形图,为该仿真模型建立图形用户界面（GUI）。仿真结果表明,该模型在高斯白噪声条件下能快速地完成跳频通信系统的捕获和跟踪,系统同步时间大大地减小并且与理论分析值相符,仿真得出的误码率也在容许的范围内。

英文摘要：

Synchronisation technology is one of the key technologies in frequency-hopping communication. The article focuses on analysing the synchronisation-head means of frequency hopping communication synehronisation method. Based on the rationale of frequency-hopping communication, we analyse the principle of synchronisation implemented by the synehronisation-head means. In light of the feature of synchronisation-head to be easily exposed and vulnerable to interference, we propose a new method which uses the index number of system frequency table to achieve frequency-hopping synchronisation, and study the format of the synchronisation sequence as well as analyse its synchronisation performance. At last, we use Simulink tool of Matlab to simulate the method, and build the graphical user guide （GUI） for the simulation model in order to more conveniently modulate model parameters and to draw the waveform derived from the simulation. Simulation results show that the model can quickly accomplish the capture and track of frequency-hopping communication system in the condition of Ganssian white noises, the synchronisation time of the system decreases greatly and meets the value of theoretical analysis, at the same time the bit error rate of the simulation is also within the allowable range.