High-precision Time Synchronization Algorithm for Unmanned Aerial Vehicle Ad Hoc Networks based on Bidirectional Pseudo-range Measurements
文献类型：期刊论文
| 作者 | Bai, Kaiyuan1,2; Wu, Jianfeng1,2; Wu, Huabing1,2 |
| 刊名 | AD HOC NETWORKS
 |
| 出版日期 | 2024 |
| 卷号 | 152页码:14 |
| 关键词 | time synchronization sub-nanosecond accuracy wireless ad hoc networks distributed algorithm multi-hop dynamic networks transmission delay elimination |
| ISSN号 | 1570-8705 |
| DOI | 10.1016/j.adhoc.2023.103326 |
| 英文摘要 | The increasing demand for missions involving unmanned aerial vehicles (UAVs) raises the need for reliable and accurate time synchronization in ad hoc networks. Time synchronization plays a crucial role in coordinating the actions of multiple UAVs, particularly when it comes to positioning, coordination, and data fusion. However, achieving high-precision time synchronization is challenging due to the difficult-to-estimate communication transmission delay, measurement noise, relative motion, and clock source characteristics in wireless ad hoc networks formed by UAVs. To address this issue, this paper proposes a fully distributed high-precision network time synchronization algorithm that is suitable for multi-hop dynamic ad hoc networks. The proposed algorithm is based on bidirectional pseudo-range measurements, graph theory, and random matrix correlation theory. It is composed of relative clock skew estimation, logic clock skew compensation and logic clock offset compensation. The algorithm is rigorously derived, requiring no central node, and it is capable of obtaining relative clock skew even when nodes broadcast clock information asynchronously. In addition, the proposed algorithm enables realtime elimination of transmission delays and has noise-resistant capabilities. Simulation results validate the effectiveness of the algorithm, demonstrating that the time synchronization accuracy in UAV ad hoc networks can reach the sub-nanosecond level. |
| WOS关键词 | WIRELESS SENSOR NETWORKS ; CLOCK SYNCHRONIZATION ; CONSENSUS ; PROTOCOL |
| 资助项目 | Youth Innovation Promotion Asso- ciation CAS[2019399] |
| WOS研究方向 | Computer Science ; Telecommunications |
| 语种 | 英语 |
| WOS记录号 | WOS:001092173800001 |
| 出版者 | ELSEVIER |
| 资助机构 | Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS ; Youth Innovation Promotion Asso- ciation CAS |
| 源URL | [http://210.72.145.45/handle/361003/14201]  |
| 专题 | 国家授时中心_时间用户系统研究室 |
| 通讯作者 | Wu, Huabing |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Kaiyuan,Wu, Jianfeng,Wu, Huabing. High-precision Time Synchronization Algorithm for Unmanned Aerial Vehicle Ad Hoc Networks based on Bidirectional Pseudo-range Measurements[J]. AD HOC NETWORKS,2024,152:14. |
| APA | Bai, Kaiyuan,Wu, Jianfeng,&Wu, Huabing.(2024).High-precision Time Synchronization Algorithm for Unmanned Aerial Vehicle Ad Hoc Networks based on Bidirectional Pseudo-range Measurements.AD HOC NETWORKS,152,14. |
| MLA | Bai, Kaiyuan,et al."High-precision Time Synchronization Algorithm for Unmanned Aerial Vehicle Ad Hoc Networks based on Bidirectional Pseudo-range Measurements".AD HOC NETWORKS 152(2024):14. |
入库方式： OAI收割
来源：国家授时中心
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