论文部分内容阅读
一、问题的提出目前发射的同步通信卫星,绝大多数都是自旋稳定的。卫星本体为圆筒形,取角速度方向为其正向的自旋轴ρ与卫星本体几何纵轴相重合。在卫星沿自旋轴正向端面上装有消旋通信天线。另一端为远地点发动机喷管出口端(只有意大利SIRIO卫星为例外,而国防通信卫星Ⅱ和ATS-F卫星没有远地点发动机)。卫星进入同步轨道后,自旋轴垂直轨道平面(即赤道平面)正向指北。天线位置是处于轨道平面的北面,如图1所示。
First, the issue raised At present, the launch of synchronous communications satellite, the vast majority are spin stable. Satellite body is cylindrical, take the direction of the angular velocity of the positive axis of rotation ρ and the geometry of the satellite body longitudinal coincidence. A satellite antenna is mounted on the positive end face of the satellite along the spin axis. With the exception of the Italian SIRIO satellite and the Defense Communications Satellite II and ATS-F satellites with no apogee engines. After the satellite enters orbit, the vertical orbital plane of the spin axis (ie, the equatorial plane) is pointed northward. The antenna position is to the north of the orbital plane, as shown in Figure 1.