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Content Provider | IET Digital Library |
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Author | Sharma, Manmohan Alomainy, Akram Parini, Clive |
Abstract | This study presents experimental investigations on high-precision localisation methods of body-worn miniature antennas using ultra-wideband (UWB) technology in line-of-sight conditions. Time of arrival data fusion and peak detection techniques are implemented to estimate the three-dimensional (3D) location of the transmitting tags in terms of x, y, z Cartesian coordinates. Several pseudo-dynamic experiments have been performed by moving the tag antenna in various directions and the precision with which these slight movements could be resolved has been presented. Some more complex localisation experiments have also been undertaken, which involved the tracking of two transmitter tags simultaneously. Excellent 3D localisation accuracy in the range of 1–4 cm has been achieved in various experiment settings. A novel approach for achieving subcentimetre 3D localisation accuracy from UWB technology has been proposed and demonstrated successfully. In this approach, the phase centre information of the antennas in a UWB localisation system is utilised in position estimation to drastically improve the accuracy of the localisation measurements to millimetre levels. By using this technique, the average localisation error has been reduced by 86, 31, and 72% for the x-, y-, and z-axis coordinates, respectively. |
Starting Page | 1 |
Ending Page | 8 |
Page Count | 8 |
ISSN | 17518725 |
Volume Number | 12 |
e-ISSN | 17518733 |
Issue Number | Issue 1, Jan (2018) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/12/1 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0023 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2017-09-07 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Biomedical Communication Body Area Network Body-mounted Miniature Antenna Cartesian Coordinate Enhanced 3D Localisation Accuracy Line-of-sight Scenario Peak Detection Technique Phase Centre Information Position Estimation Radio Link And Equipment Sensor Fusion Signal Processing And Detection Single Antenna Tag Antenna Three-dimensional Estimation Time-of-arrival Data Fusion Technique Time-of-arrival Estimation Transmitter Tags Transmitting Antenna Transmitting Tags Ultra Wideband Antenna Ultra-wideband Technology UWB Localisation System UWB Technology X-axis Coordinate Y-axis Coordinate Z-axis Coordinate |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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