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摄象机预放信噪比的分析贺升恒摄象机视频通道的信噪比是影啊图象质量的重要因素。而预放级是该通道的前置放大器，其信噪比又是视频通道信噪比的决定因素。可见．找到提高预放级信噪比的方法是十分重要的问题。现以日本胜利公司ｂｙ一３１Ｏ三管式彩色摄象机的预放级为例...
Analysis of camera pre-release signal-to-noise ratio He Shengheng The signal-to-noise ratio of camera video channels is an important factor in image quality. The pre-release level is the channel preamplifier, and its signal to noise ratio is the video channel signal to noise ratio of the determinants. visible. Finding ways to improve the signal-to-noise ratio at pre-release level is a very important issue. Now Japan’s victory by a 31O three-tube color camera pre-release level as an example ...