如果跟踪卫星的地面站位置不能精确到毫米，那么卫星也是不可能精确的。
If the ground stations tracking the satellites are not accurate to the millimeter, then the satellites cannot be accurate either.
您听说过这样的卫星计划吗，三个不同的团队为其他卫星的位置跟踪创建了数据库？
Have you heard about the satellite program where three different teams had created databases for keeping track of the location of other satellites?
在研究卫星通讯地面站的动中通设备时，要求天线系统在车载机上能很好地跟踪指定的卫星。
At studying the "Connection in moving" equipments, of the satellite communication earth station, we request that the antenna system carried on the car can follow the appointed satellite very well.
但GPS系统的精度、可靠性和完好性等都依赖于跟踪的可视卫星的数量和卫星的几何分布情况。
GPS's high precision, reliability and integrality depend on the number of available satellites and their geometrical distribution.
该工作站也将在全球“热点”地区提供额外的卫星通信支持，而不必建造昂贵的永久卫星跟踪站点，他们补充道。
The unit will also provide extra satellite communications support in global "hot spots" without having to build costly permanent satellite tracking sites, they added.
根据卫星小型移动式地面站的特点，开发了一种卫星伺服跟踪测控软件。
Based on the characteristics of small mobile ground station of satellite, a kind of servo control software is designed.
本软件依据卫星轨道参数控制伺服跟踪系统，完成对卫星的实时跟踪。
This software can control servo tracking system basing on satellite orbit parameters and realize the real-time tracking of satellite.
将这种方法用于卫星跟踪卫星，建立了地球重力场逼近的多尺度方法。5 .基于球面小波变换的冗余性，证明了利用球面小波进行重力位逼近具有最小。
Based on the redundancy of spherical wavelet transformation we proved that using spherical wavelet to approximate the earth gravity field has the least square properties.
将这种方法用于卫星跟踪卫星，建立了地球重力场逼近的多尺度方法。5 .基于球面小波变换的冗余性，证明了利用球面小波进行重力位逼近具有最小。
Based on the redundancy of spherical wavelet transformation we proved that using spherical wavelet to approximate the earth gravity field has the least square properties.
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