Clover-2000短波通信协议信号检测技术  

Detection Technology of Clover-2000 HF Communication Protocol Signals

作　　者：张润生[1] 李广峰[2] 王晓亚[1] 赵欢欢 ZHANG Runsheng LI Guangfeng WANG Xiaoya ZHAO Huanhuan(The 54th Research Institute of CETC, Shijiazhuang Hebei 050081, China Unit 91290, PLA, Beijing 102100, China)

机构地区：[1]中国电子科技集团公司第五十四研究所 [2]中国人民解放军91290部队

出　　处：《无线电通信技术》2016年第6期13-16,共4页Radio Communications Technology

基　　金：国家自然科学基金项目(81370038)

摘　　要：如何快速检测具有特定协议的信号是无线电频谱监测领域的重要任务之一。针对短波频谱监测中的Clover-2000协议信号的宽带检测问题,提出了基于频谱模板匹配和瞬时谱自相关判别的Clover-2000协议信号检测技术,通过预先建立Clover-2000协议信号频谱模板,逐点滑动求最大保持谱与频谱模板的相关系数,构造检验统计量实现该协议信号的初步检测。之后针对模板匹配方法无法区分Clover-2000与2GALE信号的问题,应用瞬时谱自相关判别的方法,进一步区分Clover-2000与2GALE信号。最后通过仿真试验验证了算法的有效性。The rapid detection of specified protocol signals is an important task in spectrum monitoring field.In view of broadband detection of Clover-2000 protocol signals in HF spectrum monitoring,this paper proposes a detection technology of Clover-2000 protocol signals based on spectrum template matching and instantaneous spectral autocorrelation. Firstly, the standard spectrum template is constructed according to the second Clover-2000 protocol,and then the maxhold spectrum of the input signal is calculated,after that the set of correlation coefficient between the template and the sliding maxhold spectrum is computed to realize the preliminary detection of the Clover-2000 signals. To separate Clover-2000 signal from 2GALE, the instantaneous spectral autocorrelation is used. Finally, the effectiveness of this algorithm is proved by simulations and practical data.

关 键 词：模板匹配 检测 Clover-2000 频谱 宽带 

分 类 号：TN391.4[电子电信—物理电子学]