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Implementation of a likelihood ratio test for laser Doppler velocimeter burst detection

机译:激光多普勒测速仪爆破检测似然比测试的实现

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A likelihood ratio test for laser Doppler velocimeter burst detection is derived and implemented with the appropriate photon detection statistics. This detector utilizes the first point of the autocorrelation function of the laser Doppler velocimeter photodetector signal and relies on a simple identity for this point. The detector looks at the ratio of two probability functions of the data (burst and no burst) to make its decision. Because the detector does not depend on the absolute strength of the signal, detection down to very low (-10-dB) signal-to-noise levels can be achieved. Because the autocorrelation function is insensitive to the phase of the signal, the detector will operate reliably with signals containing multiple overlapping bursts. # 1997 Optical Society of America
机译:导出了适用于激光多普勒测速仪猝发检测的似然比测试,并通过适当的光子检测统计数据进行了实现。该检测器利用激光多普勒测速仪光电检测器信号的自相关函数的第一点,并依赖于此点的简单标识。检测器查看数据的两个概率函数之比(突发和无突发)以做出决定。由于检测器不依赖于信号的绝对强度,因此可以实现低至非常低(-10-dB)的信噪比检测。由于自相关函数对信号的相位不敏感,因此检测器将对包含多个重叠突发的信号进行可靠操作。 #1997美国眼镜学会

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