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本文简要地介绍了一种具有信号调制频率与带通滤波器中心频率同步跟踪功能的微弱信号放大器,并说明它在微弱光信号检测中的运用及其结果,这种思想也可用于其它微弱信号的检测中。
This article briefly introduces a weak signal amplifier with signal-to-frequency and band-pass filter center-frequency tracking and shows its use in weak optical signal detection and its results. This idea can also be used for other weak signals In the test.