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一种短波差分跳频信号检测方法

Ship Science and Technology(2009)

Cited 4|Views5
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Abstract
短波差分跳频通信跳速高、信息速率高、抗干扰性能好,具有良好的应用前景。低信噪比下跳频信号的检测是短波差分跳频的关键技术之一,为提高低信噪比下短波差分跳频信号的检测性能,提出了一种基于切片瞬时四阶矩相位信息的跳频信号检测方法。理论分析和仿真结果表明,该方法对噪声具有较好的鲁棒性,在低信噪比情况下,检测性能较传统的基于瞬时相关函数的方法有明显改善,而计算量相当,具有实际应用价值。
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Key words
FH signal,detection,DFH,Wigner high-order spectra,instantaneous correlation function
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