Ultra-wideband technology-based ranging platform with real-time signal processing

Pietrzyk, M.M.; Grün, Thomas

doi:10.1109/icspcs.2010.5709651

Cited by 6 publications

(5 citation statements)

References 9 publications

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“…As UWB signals have very large bandwidth, this characteristic helps in obtaining highly accurate distance estimation using TOA measurements with the help of UWB radios [23]. TOA-based techniques have been studied extensively in the literature [24][25][26][27]. In [28], Almazrouei et al investigated the performance of the TOA method for ranging in indoor channels.…”

Section: Localisation Methods and Measurement Set-upmentioning

confidence: 99%

Enhanced 3D localisation accuracy of body‐mounted miniature antennas using ultra‐wideband technology in line‐of‐sight scenarios

Sharma

Alomainy

Parini

2017

IET Microwaves, Antennas & Propagation

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This paper presents experimental investigations on high precision localization methods of body-worn miniature antennas using ultra-wideband technology in line-of-sight conditions. Time of Arrival data fusion and peak detection techniques are implemented to estimate the three-dimensional 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 localization experiments have also been undertaken, which involved the tracking of two transmitter tags simultaneously. Excellent 3D localization accuracy in the range of 1-4 cm has been achieved in various experiment settings. A novel approach for achieving sub-centimetre 3D localization accuracy from UWB technology has been proposed and demonstrated successfully. In this approach, the phase centre information of the antennas in a UWB localization system is utilized in position estimation to drastically improve the accuracy of the localization measurements to millimetre levels. By using this technique, the average localization error has been reduced by 86%, 31% and 72% for the x, y and z axes coordinates, respectively.

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Section: Localisation Methods and Measurement Set-upmentioning

confidence: 99%

Enhanced 3D localisation accuracy of body‐mounted miniature antennas using ultra‐wideband technology in line‐of‐sight scenarios

Sharma

Alomainy

Parini

2017

IET Microwaves, Antennas & Propagation

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“…Challenging conditions in the surroundings of the UWB device must be addressed properly, since the transceiver must be able to work in a wide frequency band in varying environmental conditions. Generally, UWB ranges can be measured up to about 200 m in line-of-sight (LoS) environments but the performance for ranging is best when range observations are performed under 50 m [ 13 ].…”

Section: Employed Positioning Technologiesmentioning

confidence: 99%

Fusion of GNSS Pseudoranges with UWB Ranges Based on Clustering and Weighted Least Squares

Retscher

Kiss

Gabela

2023

Sensors

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Global navigation satellite systems (GNSSs) and ultra-wideband (UWB) ranging are two central research topics in the field of positioning and navigation. In this study, a GNSS/UWB fusion method is investigated in GNSS-challenged environments or for the transition between outdoor and indoor environments. UWB augments the GNSS positioning solution in these environments. GNSS stop-and-go measurements were carried out simultaneously to UWB range observations within the network of grid points used for testing. The influence of UWB range measurements on the GNSS solution is examined with three weighted least squares (WLS) approaches. The first WLS variant relies solely on the UWB range measurements. The second approach includes a measurement model that utilizes GNSS only. The third model fuses both approaches into a single multi-sensor model. As part of the raw data evaluation, static GNSS observations processed with precise ephemerides were used to define the ground truth. In order to extract the grid test points from the collected raw data in the measured network, clustering methods were applied. A self-developed clustering approach extending density-based spatial clustering of applications with noise (DBSCAN) was employed for this purpose. The results of the GNSS/UWB fusion approach show an improvement in positioning performance compared to the UWB-only approach, in the range of a few centimeters to the decimeter level when grid points were placed within the area enclosed by the UWB anchor points. However, grid points outside this area indicated a decrease in accuracy in the range of about 90 cm. The precision generally remained within 5 cm for points located within the anchor points.

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“…The directory structure is shown in Figure 6. We provide raw data from the Motion capture system, which can be compared to the work in [48] as a motion capture system with a millimetric accuracy and UWB system with centimeters accuracy [29,50,51]. Timestamps are stored in timestamps.txt and data format are stored in dataformat.txt.…”

Section: Datasetmentioning

confidence: 99%

A New Dataset of People Flow in an Industrial Site with UWB and Motion Capture Systems

Delamare

Duval

Boutteau

2020

Sensors

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Improving performance and safety conditions in industrial sites remains a key objective for most companies. Currently, the main goal is to be able to dynamically locate both people and goods on the site. Security and access regulation to restricted areas are often ensured by doors or badge barriers and those have several issues when faced with people being in places they are not supposed to be in or even tools of objects being used incorrectly. In addition to this, a growing use of new devices requires precise information about their location in the environment such as mobile robots or drones. Therefore, it is becoming essential to have the tools to dynamically manage these flows of people and goods. Ultra-wide-band and motion capture solutions will be used to quickly identify people who may be in unauthorized areas or performing tasks which they have been uninstructed to do. In addition to the dynamic tracking of people, this also overcomes some issues associated with moving objects or tools around the production floor. We offer a new set of data that provides precise information on worker movement. This dataset can be used to develop new metrics regarding worker efficiency and safety.

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Ultra-wideband technology-based ranging platform with real-time signal processing

Cited by 6 publications

References 9 publications

Enhanced 3D localisation accuracy of body‐mounted miniature antennas using ultra‐wideband technology in line‐of‐sight scenarios

Enhanced 3D localisation accuracy of body‐mounted miniature antennas using ultra‐wideband technology in line‐of‐sight scenarios

Fusion of GNSS Pseudoranges with UWB Ranges Based on Clustering and Weighted Least Squares

A New Dataset of People Flow in an Industrial Site with UWB and Motion Capture Systems

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