基于宽带测向系统的高速跳频截获方法

A Method of High-speed Frequency-hopping Signal Interception Based on Wideband Direction Finding

针对传统的跳频截获方法在多部跳频电台同时存在时容易出现判断错误的问题,提出了基于宽带测向系统的高速跳频截获方法。新方法利用了宽带快速测向系统的多信道并行处理和快速测向等优点,为后续的跳频网台处理提供了时域、频域和空域的综合特征,从而提高了对高速跳频的截获概率和网台分选正确率。仿真试验和工程实践均证明了新方法的可行性和有效性。

The misjudgement can usually occur when the traditional methods of frequency-hopping signal interception exist simul- taneously in multiple frequency-hopping radios. Aiming at this problem,this paper proposes a high-speed frequency-hopping interception method based on wideband direction finding （DF） system. This method uses such-characteristics of wideband DF system as multi-chan- nels parallel processing and high speed DF to provide synthetic characteristics in time-frequency-space domain for subsequent sorting, thus promotes the probability of interception on high speed hopping signals and sorting correct rate. Experimental results show the meth- od can improve the veracity of interception and depress the difficulty of sorting.