电视中来自摄象机的图象信号输出中不希望出现的组成部分，它是由光学系统中光散射引起的。
In television, an unwanted component in the picture signal output from a camera, caused by the scattering of light in the optical system.
假定图象信号的数学期望为零，证明了相关器输出的基本性质。
Suppose the mathematical expectation of image signal is zero, the basic properties of the correlator output are given.
假定图象信号的数学期望为零，证明了相关器输出的基本性质。
Suppose the mathematical expectation of image signal is zero, the basic properties of the correlator output are given.
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