1990年初开始提出利用静止轨道以外的其他轨道通信卫星的设想，最好是利用低轨道(LEO)卫星。

Now in the 1990's it have been growing in using orbits other than the geostationary orbit for telecommunications satellites. It is the best approach to use the Low Earth orbit (LEO) satellites.

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在滤波计算过程中，采用了改进的广义卡尔曼滤波算法，以某地球同步轨道通信卫星为背景，进行了计算机仿真研究。

Computer simulations are done based on certain earth synchronous communications satellite, and an improved extended Kalman filtering algorithm is adopted in course of filtering.

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由于同步轨道通信卫星位于距离地球36000公里的赤道上空，因此长距离的线运动干扰与角运动干扰相比，其扰动作用显得微乎其微。

The first kind of disturbance influences the communication more than the second kind because the geostationary communication satellite is located in the orbit 36000 kilometers higher than equator.

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