在重放多信道录象带时或直接显示时，利用自动识别并选择任一信道的发象信号。
The image signals in any channel are automatically identified and selected by the id.
在相邻两个导频段之间的信息段，则不进行多径信道的实时跟踪。
The information segment which is between two pilot segment don't need to been tracked.
在相邻两个导频段之间的信息段，则不进行多径信道的实时跟踪。
The information segment which is between two pilot segment don't need to been tracked.
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