"Beidou" double satellite positioning system, adopting two geosynchronous satellites to position, has the characteristic of high precision in positioning and active positioning mechanism.
北斗双星定位系统(简称双星定位)利用两颗地球同步卫星进行定位，具有定位精度高、采用有源定位体制的特点。
A regional satellite navigation system which is made up of geosynchronous satellites and synchronous satellites with elliptical orbit is proposed.
提出了一种用静止卫星和同步椭圆轨道卫星构造的区域卫星定位系统。
A regional satellite navigation system which is made up of geosynchronous satellites and synchronous satellites with elliptical orbit is proposed.
提出了一种用静止卫星和同步椭圆轨道卫星构造的区域卫星定位系统。
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