【24h】

Determination of the Range of the Spacecraft

机译:确定航天器的射程

获取原文

摘要

As a result of the gravitational attraction of the Sun/Moon/Earth, the pressure of solar radiation and other factors, the spacecraft located in the geostationary orbit deviates from the real orbit. The position of the spacecraft is regulated by a short pulse switching by correcting engines. This requires highly accurate measurement of the range to a spacecraft located in a geostationary orbit. The article describes a method for measuring the range not only by rangefinder, but also by command signals of the tracking, telemetry and command subsystem of a spacecraft, which allows for continuous measurement. Due to the fact that the reserves for improving the accuracy of measuring the range of a spacecraft, with known limitations as part of a single ground station, are almost exhausted, one of the perspective ways to solve this problem has been proposed. It consists of using several satellite earth stations, which are stationary located at various known locations on the Earth's surface and which receive any signal transmitted by a spacecraft located in a geostationary orbit. This method eliminates the using of special ranging signals and antennas of large diameter. For high-precision range measurement, synchronization of generators of a satellite earth stations by time signals transmitted by GLONASS or GPS navigation satellites is required. In addition, the using of various types of signals for determining the range, when measuring the delay time or phase difference, is considered. Relevant conclusions are made.
机译:由于太阳/月亮/地球的重力吸引,太阳辐射的压力和其他因素,对地静止轨道上的航天器偏离了真实轨道。航天器的位置通过校正引擎的短脉冲切换来调节。这就需要高度精确地测量位于对地静止轨道上的航天器的射程。本文介绍了一种不仅可以通过测距仪来测量距离的方法,还可以通过航天器的跟踪,遥测和命令子系统的命令信号来测量范围的方法,该方法可以进行连续测量。由于已知的局限性,即作为单个地面站的一部分,用于提高航天器测距精度的储备几乎已用完,因此提出了解决这一问题的一种透视方法。它由使用几个卫星地球站组成,这些卫星地球站固定在地球表面的各个已知位置,并接收位于地球静止轨道上的航天器发射的任何信号。这种方法消除了使用特殊测距信号和大直径天线的麻烦。为了进行高精度的距离测量,需要通过GLONASS或GPS导航卫星发送的时间信号使卫星地球站的发电机同步。另外,考虑了在测量延迟时间或相位差时使用各种类型的信号来确定范围。得出相关结论。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号