3G-ALE短波信号检测分析技术  

Technique for Detection and Analysis of 3G-ALE Waveform

作　　者：王晓亚[1] 鲁玉海[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《通信对抗》2013年第1期11-13,24,共4页Communication Countermeasures

摘　　要：3G-ALE(Third Generation HF Automatic Link Establishment)通信技术具有低信噪比下快速的链路建立、高的业务流量等特点,得到了广泛关注。研究短波环境中3G-ALE信号的快速检测、识别技术,对信号侦察和截获具有重要意义。针对3G-ALE的协议特征,研究使用相关检测、FFT频差估计等技术,完成了不同波形的信号检测和同步技术,在实验室环境下对真实电台信号进行了试验,验证了方案的可行性及性能。Third Generation HF Automatic Link Establishment is attentioned widely because of its characteris-tic of quickly link establishment and high throughput. It is important to research the technique for 3G-ALE waveform＇s quickly detection and recognition. The paper makes use of the protocol and the difference of the waveform, uses the correlativity and the frequency offset estimation technique, accomplishes several waveforms detection and synchronization. Experimentation tests the feasibility and capability of its scheme.

关 键 词：第三代短波自动链路建立 相关检测 FFT频差估计 

分 类 号：TN911.23[电子电信—通信与信息系统]