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卫星自主定轨是卫星自主导航中的关键技术,其概念是指卫星在不借助地面站系统测控情况下直接在星上实现轨道参数的自主确定,实时确定卫星飞行的位置和速度.国际上已提出了诸如利用星敏感器测量、地球磁强计测量、利用掩星时刻测量以及近年来非常热门的利用X-ray脉冲星信号相位测量等多种算法来实现卫星自主导航.其中利用星敏感器测量的自主导航方法具有成本低、研制周期短、可观测条件强以及观测设备技术成熟等优点,其可行性和经济效益比较突出,是一种非常值得采用的自主导航方法.国内外对星敏感器自主导航的研究,基本还是原理方法的论述以及简单仿真验证研究.本论文对卫星利用星敏感器的自主导航算法进行了研究,通过建立逼真的卫星运行平台,充分考
Satellite autonomous orbit determination is the key technology in satellite autonomous navigation. Its concept is that the satellite can determine the orbital parameters directly on the satellite without using the monitoring and control of the ground station system, and determine the position and speed of the satellite flight in real time. Proposed such as the satellite sensor measurement, the earth magnetometer measurement, the use of occultation moment measurement and in recent years the very popular use of X-ray pulsar signal phase measurement and other algorithms to achieve satellite autonomous navigation. Which uses the star sensor The autonomous navigation method has the advantages of low cost, short development cycle, strong observable conditions and mature technology of observation equipment, and its feasibility and economic benefits are outstanding, so it is a very autonomous navigation method that is worth to be used at home and abroad. Autonomous navigation research, the basic principle and methodological discussion and simple simulation verification research.This paper studies the satellite using satellite sensor autonomous navigation algorithm, through the establishment of realistic satellite operating platform, fully test