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介绍了一种煤矿井下图象信号的窄带传输系统，着重阐述了该系统的特点及两个关键技术──图象压缩编码及帧存储器，并指出了该系统的应用前景
This paper introduces a narrowband transmission system of coal mine underground image signal, emphasizes the characteristics of the system and two key technologies - image compression coding and frame memory, and points out the application prospect of the system