进一步说明背景光子噪声并不是探测器灵敏度的最后极限。
It was further explained that the background fluctuation limit was not the final limit of the detector sensitivity.
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。
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 .
更高的速度较为敏感的光子，但分辨率一般较低，更容易受到噪声。
Higher speeds are more sensitive to photons but are generally lower in resolution and more susceptible to noise.
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