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基于瞬时频率估计的双曲调频信号检测技术

南昌航空大学学报(自然科学版), no. 04 (2007): 66-70

Cited by: 3|Views4
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Abstract

基于双曲调频信号的特征分析,提出了一种新的HFM信号检测方法——周期斜率方差检测器。根据不同信噪比下周期斜率方差的概率密度,给出了该检测器的二元假设检验模型,并对比了相同条件下该检测器与匹配滤波器的性能。仿真结果表明,周期斜率方差检测器是一种恒虚警概率检测器,在较低信噪比下可有效检测双曲调频信号,并对多普勒失配有很好的适配性。

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ENHyperbolic frequency modulated signal detection based on instantaneous frequency estimation
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