Abstract
该文针对稳态条件下通信电台指纹特征的提取问题,提出一种基于高阶谱和时域分析的电台稳态特征提取算法。首先对电台的稳态工作状态进行数学建模,分析现有双谱特征提取算法的不足。进而充分利用矩形积分双谱的周期性,并结合时域分析提出一种改进的电台稳态特征提取算法,从理论上证明了该算法适用于任意阶的高阶谱特征提取。最后,通过实测数据验证了该算法的有效性和可靠性。与传统矩形双谱特征提取算法相比,该算法将识别正确率从90%提高到97%;在识别率相同的情况下,该算法的效率相比原算法有了很大提升。
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