Then the influence on the average power spectrum and bispectrum of specklegrams caused by the photon noise, additive noise and more complex noises of other kinds in the detecting system .
介绍了所用的二维光子计数斑点像探测系统的性能，分析了探测系统的光子噪声、附加噪声和其它更复杂的噪声对斑点图的平均功率谱和重谱的影响。
Since the downward conversion photon pairs have strong correlation in time, they can be used for noise - free optical communication.
由于下转换光子对具有很强的时间相关性，可用来进行无噪声的光通讯。
The difference of two systems is that the microscopic photon counting image system is a noise limited system.
二者的区别在于显微光子计数成像系统是噪声受限系统。
This article provides the signal-to-noise ratio module of the range-gating photon counting system and discusses the synchronization between the laser echo wave and the detector gate.
本文给出了距离选通光子计数系统的信噪比模型并讨论了激光回波与探测器选通门之间的同步问题。
We show that the refular pumping statistics and atomic coherences can reduce the field noise of multiple one photon optical bistability, but can not result in field squeezing from an ordinary vacuum.
证明了亚泊松泵浦及原子的相干性可使多单光子双稳态的光场噪声降低，但不能产生光场的压缩效应。
Findings indicate that the photon shot noise primarily determines the SNR.
分析结果表明光子散粒噪声决定了系统的信噪比。
A new signal-to-noise ratio criterion-speckle criterion for photon correlation spectrum was established by use of the statistical method, and its physical significance analyzed.
利用统计方法重建了光子相关谱信噪比的散斑判据，并分析了散斑判据的物理意义。
The actual signal-to-noise ratio criterion of photon correlation spectrum, its building-up process and its shortages were summarized.
概述了现行的光子相关谱信噪比判据、建立过程及其不足。
The photon counting detection technique and the improvement of the signal-to-noise ratio are analyzed theoretically.
理论分析了光子计数探测技术和信噪比的改善，实验研究了改善信噪比的脉冲累计方法。
The photon counting detection technique and the improvement of the signal-to-noise ratio are analyzed theoretically.
理论分析了光子计数探测技术和信噪比的改善，实验研究了改善信噪比的脉冲累计方法。
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