直接序列扩频、高速跳频与跳时相结合的技术,造成了对Link16信号的检测具有相当的难度。文中针对突发Link16信号脉冲宽度强规律性,借鉴双滑动窗算法在突发信号检测上的应用,提出了改进后基于相关处理的双滑动窗Link16信号检测方法,该方法可实现复杂电磁环境下对Link16信号的高灵敏度、高概率检测,同时正确估算出脉宽、码速率等参数信息。仿真实验数据验证了理论分析的正确性和所述方法的有效性,相较于其他Link16信号检测方法,改进后的基于相关处理的双滑动窗检测算法明显提高了在低信噪比下对Link16信号的检测能力。

Because of the direct sequence spread spectrum, the combination of high speed frequency hopping and jumping technology, the detection of Link16 signal is quite difficult. For a sudden Link16 signal pulse width with strong regularity, double sliding windows Link16 signal detection method based on relevant processing is proposed. This method can realize high sensitivity and high probability detection of Link16 signal in complex electromagnetic environment. Meanwhile, the parameters such as pulse width and bit rate are correctly estimated. Simulation experimental data verifies the correctness of theoretical analysis and the effectiveness of the proposed method. Compared with other methods, the improved dual-sliding window detection algorithm based on correlation processing significantly improves the ability to detect Link16 signals under low signal-to-noise ratio.

TN957. 51