Noise on multiple-tau photon correlation data
Noise on multiple-tau photon correlation data
复制标题
多 tau 光子相关数据上的噪声
DOI：
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发表时间：
1991
期刊：
影响因子：
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通讯作者：
R. Peters
中科院分区：
文献类型：
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作者：
Klaus Schaetzel;R. Peters
光子相关数据的噪声理论的结果，提出了一个探测器信号，它可以被建模为一个伽马过程的相当一般的情况下。该模型包括有限截距效应，甚至可以用于外差测量。多个采样时间测量被认为是特别小心和显着减少的噪声随着增加的采样时间通常被发现在小以及在大的滞后（和样本）时间，如果标准的归一化过程被替换的对称或补偿的归一化方案。大估计协方差观察到整个滞后时间范围高达一个相干时间。这种类型的相关噪声对于相关测量是典型的，并且可能容易导致过拟合问题。实验验证包括噪声计算。
The results of a theory of noise on photon correlation data is presented for the rather general case of a detector signal which can be modeled as a Gamma process. This model includes finite intercept effects and may even be used for heterodyne measurements. Multiple sample time measurements are considered with particular care and significant decreases of noise with increasing sample time are typically found at small as well as at large lag (and sample) times, if the standard normalization procedure is replaced by the symmetric or compensated normalization schemes. Large estimator covariances are observed across lag time ranges up to one coherence time. This type of correlated noise is typical for correlation measurements and may easily lead to overfitting problems. Experimental verifications are included for the noise calculations.