Shift control method for the local time at descendi ngnode based on sun-synchronous orbit satellite  

作　　者：Yang Yong'an Feng Zuren Sun Linyan Tan Wei 

机构地区：[1]Xi'an Jiaotong Univ., Xi'an 710049, P. R. China [2]Xi'an Satellite Control Center, Xi'an 710043, P. R. China

出　　处：《Journal of Systems Engineering and Electronics》2009年第1期141-145,共5页系统工程与电子技术（英文版）

基　　金：supported by the China Postdotoral Science Foundation(20060401004)

摘　　要：This article analyzes the shift factors of the descending node local time for sun-synchronous satellites and proposes a shift control method to keep the local time shift within an allowance range. It is found that the satellite orbit design and the orbit injection deviation are the causes for the initial shift velocity, whereas the atmospheric drag and the sun gravitational perturbation produce the shift acceleration. To deal with these shift factors, a shift control method is put forward, through such methods as orbit variation design, orbit altitude, and inclination keeping control. The simulation experiment and practical application have proved the effectiveness of this control method.This article analyzes the shift factors of the descending node local time for sun-synchronous satellites and proposes a shift control method to keep the local time shift within an allowance range. It is found that the satellite orbit design and the orbit injection deviation are the causes for the initial shift velocity, whereas the atmospheric drag and the sun gravitational perturbation produce the shift acceleration. To deal with these shift factors, a shift control method is put forward, through such methods as orbit variation design, orbit altitude, and inclination keeping control. The simulation experiment and practical application have proved the effectiveness of this control method.

关 键 词：space engineering sun-synchronous orbit satellite local time of descending node drift control method. 

分 类 号：P414.4[天文地球—大气科学及气象学] TP273.22[自动化与计算机技术—检测技术与自动化装置]