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常见视频干扰情况分析

1、工频干扰干扰现象：图像出现雪花噪点、网纹或很宽暗横带持续不断滚动。干扰原因：此现象是当摄像端与监控设备端同时接地时，由于地电阻及电缆外皮电阻的存在，在两地之间电力...

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