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.
出处
《通信对抗》
2013年第1期11-13,24,共4页
Communication Countermeasures
