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.
这种新方法的基础是零序变压器在三相异步电动机断相时输出一个电压信号。
Use is made of that zero-sequence transformer outputs a voltage signal when phase-failure occurs in three-phase induction motor.
实验和模拟结果均表明：采用简化方案时转换输出的伪归零信号所包含的时钟分量的强度小于采用抽运探测方案的情况。
Both of them shows that the clock component contained in the converted PRZ signal obtained using the simplified scheme is weaker than that using the pump-probe scheme.
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