全球定位系统2024，Vol.49Issue(4)：22-27,6.DOI:10.12265/j.gnss.2024032
基于差分隐私的卫星互联网协同定位研究
Differential privacy-based cooperative positioning for satellite internet
摘要
Abstract
Satellite internet provides positioning,navigation and timing services for the whole world based on the Global Navigation Satellite System(GNSS),but the data containing users'location information will be leaked during GNSS cooperative positioning process,which poses a threat to users'privacy security.To address the current privacy-protection challenges in GNSS cooperative positioning systems,this paper proposes a differential privacy-based cooperative positioning method for GNSS systems.The method first generates the perturbed position and randomly selects one to calculate the positioning collaboration data under the premise of satisfying the privacy budget,so as to prevent the user's location from being leaked during the collaboration process.The experimental results show that the proposed method can effectively protect user location privacy while guaranteeing real-time and accurate positioning service,which provides a theoretical reference for the research of GNSS cooperative positioning information security.关键词
GNSS/差分隐私/隐私保护/协同定位/卫星互联网Key words
Global Navigation Satellite Systems(GNSS)/differential privacy/privacy preserving/co-operative positioning/satellite internet分类
天文与地球科学引用本文复制引用
陶祎航,李建华..基于差分隐私的卫星互联网协同定位研究[J].全球定位系统,2024,49(4):22-27,6.基金项目
国家自然科学基金(U20B2048) （U20B2048）
