CAJ | 학술논문

为了利用脉冲星测量航天器姿态,提出一种基于X射线脉冲星矢量多平面观测的姿态测量方法,研究了该方法的测量原理和测量精度.首先,建立一个由若干具有不同法向方向的平面组成的立体结构,并在每个平面上安装脉冲星传感器;接着,测量不同平面内接收的X射线脉冲星光子功率,以及功率的测量值和各平面之间的相对几何关系;最后,计算出脉冲星的矢幅值和空间角,从而得到航天器姿态.实验结果显示,利用X射线脉冲星矢量的多平面观测方法测量得到的航天器姿态精度能够达到0.1°,表明X射线脉冲星姿态多平面测量方法可以满足未来航天应用所需的姿态测量精度,有利于航天器技术发展.
위료이용맥충성측량항천기자태,제출일충기우X사선맥충성시량다평면관측적자태측량방법,연구료해방법적측량원리화측량정도.수선,건립일개유약간구유불동법향방향적평면조성적입체결구,병재매개평면상안장맥충성전감기;접착,측량불동평면내접수적X사선맥충성광자공솔,이급공솔적측량치화각평면지간적상대궤하관계;최후,계산출맥충성적시폭치화공간각,종이득도항천기자태.실험결과현시,이용X사선맥충성시량적다평면관측방법측량득도적항천기자태정도능구체도0.1°,표명X사선맥충성자태다평면측량방법가이만족미래항천응용소수적자태측량정도,유리우항천기기술발전.
This paper describes the design, tests and preliminary results of detecting the X-ray pulsar vectors to acquire the attitude of a spacecraft by a multiple-plane sensor. Firstly, comparing to the star sensors or other traditional attitude measuring methods, a multiple-plane structure with the orthogonal vectors towards to the different directions is established and the multiple-plane sensor is set on the plane structure. Then, by measuring the photon power received by each plane and by considering the geometry relationship of the planes, the sensor is used to compute the vectors and spatial angle from a certain pulsar and to obtain the attitude of a spacecraft. Measured results show that the attitude of the spacecraft can be as much as 0.1° if vectors from several different pulsars are recognized and specified. The simulation is established and the result proves that the method is feasible in future spacecraft missions.