灯光信号显示距离测试 light signal visibility test
但传统的拼接式等离子显示系统中存在着信号源单一、信道传输距离短、可操作性差、与用户交互不够等缺点。
However, traditional TSPDP display system exists some disadvantages such as single signal source, short transmission distance, hard to manipulate and no interaction with users.
较差收星信号可能引起计算位置的游离，从而增加了显示的旅行距离。
Poor visibility to satellites may cause the calculated position to wonder around, increasing the apparent traveled distance.
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