Integrated constellation design and deployment method for a regional augmented navigation satellite system using piggyback launches  

作　　者：Shuai Guo Wanmeng Zhou Jin Zhang Fuyu Sun Dateng Yu 

机构地区：[1]College of Aerospace and Engineering,National University of Defense Technology,Changsha 410073,China [2]China Astronaut Research and Training Center,Beijing 100094,China [3]Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China

出　　处：《Astrodynamics》2021年第1期49-60,共12页航天动力学（英文）

基　　金：This work was partially supported by the National Natural Science Foundation of China(No.11572345);the Science Project of the National University of Defense Technology(Nos.ZK17-03-21 and ZK18-03-07).

摘　　要：The method proposed in this paper is adopted to solve problem B of the 9th China Trajectory Optimization Competition(CTOC).An accurate and economical constellation design strategy for regional augmented navigation satellite systems(RANSSs)has attracted a substantial amount of research interest owing to the increased demand for navigation services in complex environments.This paper proposes a hybrid method of constellation design and deployment for a RANSS to satisfy the navigation performance requirements and minimize the construction cost.First,the search spaces of the design parameters are determined by analyzing the orbital parameters of piggyback launches.Second,the constellation is designed as a combined Walker constellation and optimized by a differential evolution(DE)algorithm.Finally,optimal strategies for deploying satellites to the desired orbits are obtained using a transfer optimization design.The method was adopted to design a RANSS for servicing the 182 cities in the Asia-Pacific region.The configuration consists of five orbital planes and 80 navigation satellites and achieves a low construction cost with 10 piggyback launches.Furthermore,the constellation can cooperate with an existing navigation satellite system to further improve the navigation accuracy for all cities.The results reveal that the RANSS design and deployment problem can be effectively solved with a low construction cost and high navigation performance.

关 键 词：constellation design regional navigation augmentation piggyback launches trajectory optimization 

分 类 号：P173.1[天文地球—天文学]