It is studied that the code acquisition technology of direct sequence spread spectrum system in LEO satellite communication.
研究了用于低轨卫星通信的直接序列扩频系统的码捕获技术。
It was proposed that the project of satellite overlay communication with direct sequence spectrum spreading (DSSS).
提出一种利用DS扩频技术实现卫星重叠通信的方案。
A block is formed by the image sequence acquired with the satellite formation, and the block aerotriangulation by bundle method is applied to get coordinate of ground point.
卫星编队拍摄的序列图像可组成多轨道区域网,通过区域网光束法平差解算就可以获得目标点坐标。
Moreover, it is very suitable to satellite systems equipped with on off jets and reaction wheels. Finally, numeric simulation is explored to verify the validity of pulse sequence control.
此外,由于控制输出为方波,因而适合卫星的喷气推力器控制模式和飞轮控制模式,最后通过数字仿真验证了方波序列控制的有效性。
In addition, the number of the edge droplets, finger droplets and the satellite droplets decreases in sequence at a certain spreading process.
另外,在同一铺展过程中,边缘液滴、指形液滴和卫星液滴三者的数量呈依次递减的关系。
In addition, the number of the edge droplets, finger droplets and the satellite droplets decreases in sequence at a certain spreading process.
另外,在同一铺展过程中,边缘液滴、指形液滴和卫星液滴三者的数量呈依次递减的关系。
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