天气预报 > 科学 > 北斗军用精度是多少米
北斗军用精度是多少米
更新时间: 2021-04-11 14:39:47  

1、北斗一代是“主动式定位”,即被导航物体要向卫星发射信号,由地面中心计算后再发给被导航物体,水平精度100米(1σ),设立标校站之后为20米。

2、北斗二代系统是按照“被动式导航”设计的,和GPS原理一样,接收机只接收信号就能完成定位,军用码定位精度可以精确到厘米、毫米级。但民用能达到多少,还要看军方的态度了。

关键词: 北斗 军用 精度 多少

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