Multi-user interference and wireless clock synchronization in TDOA-based UWB localization

2016 ◽  
Author(s):  
Janis Tiemann ◽  
Fabian Eckermann ◽  
Christian Wietfeld
Keyword(s):  
Clock Synchronization ◽  
Wireless Clock ◽  
User Interference

scholarly journals Strongly Non-Zeno Event-Triggered Wireless Clock Synchronization

2020 ◽  
Vol 53 (2) ◽  
pp. 2745-2750
Author(s):  
James A. Berneburg ◽  
Eloy Garcia ◽  
Adam Gerlach ◽  
David Casbeer ◽  
Cameron Nowzari
Keyword(s):  
Clock Synchronization ◽  
Wireless Clock ◽  
Event Triggered

scholarly journals Network Scalability for Ultra-Wideband Real-Time Location Systems Based on vMISO

2018 ◽  
Vol 2018 ◽  
pp. 1-11
Author(s):  
Qian Gao ◽  
Chong Shen ◽  
Kun Zhang
Keyword(s):  
Clock Synchronization ◽  
Effective Means ◽  
Ultra Wideband ◽  
Time Base ◽  
Common Time ◽  
Single Region ◽  
Wireless Clock ◽  
Physical Access ◽  
Network Scalability ◽  
Location Systems

For time-based location systems, a common time base is important for obtaining the correct position. However, wireless clock synchronization is considerably easier to deploy in certain environments, such as large areas. A single-region positioning network is often restricted to the anchor communication range. Therefore, multiple master anchors form the basis of an extensible location network and provide an effective means of adapting the system to a complex propagation environment. In this article, we consider simultaneous network scalability with the relative clock synchronization and localization. We first establish an extendable UWB location system model through intelligent response across the routing layer and physical layer. Anchors act as master or slave anchors in different cluster areas and advance the clock check packet (CCP) from an initial region to the surrounding area to achieve clock synchronization of the entire network. The intracluster CCP transmission is achieved by broadcasting, and the intercluster CCP transmissions use vMISO and are automatically driven by the broadcast arrival time for better results. Furthermore, the physical-access and clock synchronization algorithms are discussed. Finally, location tests combined with routing simulations are conducted to demonstrate the performance of the proposed scheme.

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