Spacecraft Relative Angle Optical Measurement Method and Error Analysis
Contraposing the measurement of relative angle between two spacecrafts, the paper puts forward an optical measurement method on the basis of monocular computer vision and introduces measurement principle. The paper analyzes error factors influencing measurement accuracy and constructs angle measurement error model. Utilizing ground angle measurement prototype test system, the paper measures the azimuth angle and altitude angle of Sirius relative to experiment point, analyzes error distribution of angle measurement method and demonstrates the influence to measurement accuracy caused by error factors. The result proves that taking advantage of the method put forward by the paper, measuring error of rotation angle of Sirius is a random error which is approximate normal distribution, and the method can counteract part system error. Angle measurement error is not exceeding1′ . If adopting high resolution camera, the measurement accuracy of the method can reach angular second level.
Du Xiaoping Zhao Jiguang Zeng Dexian
Spaceflight Equipment Department, The Institute of Equipment Command and Technology Beijing 101416, China
国际会议
北京
英文
2007-08-05（万方平台首次上网日期，不代表论文的发表时间）