Intelligent precision indoor real time location system : calibration algorithms

• Main Author: Sze Toh, Melvin Yong Kang
• Other Authors: Law Choi Look
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2021
• Subjects: Engineering::Electrical and electronic engineering
• Online Access: https://hdl.handle.net/10356/149754
• Institution: Nanyang Technological University

Ultra-wideband (UWB) wireless technology has seen to be on the rise in various fields as a localization method in recent years. UWB offers good accuracy distance estimation using time-of-flight measurements of wireless signals. As some location where global navigation satellite system (GNSS) positioning is poor or unavailable, tracking can be a problem. Therefore, employs UWB-based localization systems to perform given tasks. However, existing solutions tend to rely on fixed and/or calibrated set of UWB anchors to estimate the precise location of mobile tags through multilateration. The limitation for a system like this restricts dynamic and ad-hoc deployments. In the event of such deployments, more work has to be done to achieve a well calibrated set of system. Using Decawave’s DWM1001 UWB module, the aim is to enable autocalibration of anchor positions in the case of such events. As compared with the integrated autocalibration developed by Decawave, the aim is to reduce the calibration time and improve the accuracy.