unnumbered asteroid是什么意思

用法例句

Researches on the Measurement of Position andAttitude of the Formation Flying Small Satellites;

编队飞行小卫星空间状态测量方法研究

The paper introduces the character of formation flying small satellites,and then puts forward a design method for inter-satellite relative ranging and time synchronization.

介绍了编队飞行小卫星的特点,提出采用无线电双向单程测距方法实现星间相对测距和时间同步,计算了伪码和载波相位跟踪环路、星间相对运动、钟差变化、测量设备延迟、天线相位中心误差带来的星间相对测距和时间同步误差,讨论了降低误差的方法。

The preliminary design of small satellites formation flying and the solving process of orbital elements of each circling satellite are presented by using the linear Hill equations for the relative motion.

用两体相对运动的线性 Hill方程进行了小卫星编队飞行队形的初步设计 ,并给出编队飞行中各绕飞小卫星轨道要素的确定过程。