low-altitude orbit 中文意思是什麼
low-altitude orbit
解釋
低高度軌道-
In order to cover the whole earth ’ s surface, telecommunication satellites are arranged in two ways : one is to put three geosynchronous satellites at the geosynchronous orbit ( about 35, 700km altitude ). another is to put several tens or several hundreds of satellites at low earth orbit ( about 700km altitude )
為了能夠覆蓋整個地球表面，通信衛星通常採用兩種方式布置:一種是用三顆地球同步軌道衛星（ 35 ， 700公里） ，另一種是需要幾十至幾百顆的低軌道（ 700公里）衛星。 -
Different sampling periods of sensors and the recursive steps of initial states are investigated. the navigation precision with different condition such as different precision of sensors, different length of observation time are compared. then, three orbit types, consisting of low - altitude orbit, middle - altitude orbit and high - altitude orbit, are simulated respectively
在pc機上首先分析敏感器采樣周期和濾波迭代次數對自主導航精度的影響，然後比較敏感器精度不同，觀測時間長短不同，軌道類型不同情況下所產生的導航誤差。 -
The international space station orbits the earth at an altitude of approximately 360 km, a type of orbit usually termed as low earth orbit
國際空間站在大約360公里高處圍繞地球運行，這個軌道被稱為低地球軌道。
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