摘要
研究用2个红外地球敏感器和1个星敏感器实现卫星自主导航的方法,地心矢量的测量精度是影响导航精度的重要原因之一,而地心矢量的测量又受到地球扁率的影响。研究地球扁率对地心矢量测量的影响,并提出一种零姿态扁率误差补偿方法,通过仿真验证了这种导航方法及扁率误差补偿算法的有效性。
A new autonomous navigation method for satellites with earth oblateness compensation is discussed in this paper. This method only requires two scanning infrared earth sensors and one star sensor. The accuracy of the measurements of the geocentric vector plays a key role in satellite navigation, but is affected by the earth oblateness. The effect of the earth oblateness on the measurement of the geocentric vector is discussed, and a method for compensating the earth oblateness with zero attitudes is proposed. Simulation shows its validity.
出处
《航天控制》
CSCD
北大核心
2009年第2期36-40,共5页
Aerospace Control
基金
国家自然科学基金(60702019)
关键词
自主导航
卫星
红外地球敏感器
星敏感器
地球扁率
Autonomous navigation
Satellite
Infrared earth sensor
Star sensor
Earth oblateness
