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Tracking and positioning using phase information from estimated multi-path components

Zhu, Meifang LU ; Vieira, Joao LU ; Kuang, Yubin LU ; Åström, Karl LU ; Molisch, Andreas and Tufvesson, Fredrik LU (2015) IEEE International Conference on Communications, ICC 2015
Abstract
High resolution radio based positioning and tracking is a key enabler for new or improved cellular services. In this work, we are aiming to track user movements with accuracy down to centimeters using standard cellular bandwidths of 20-40 MHz. The goal is achieved by using phase information from the multi-path components (MPCs) of the radio channels. First, an extended Kalman filter (EKF) is used to estimate and track the phase information of the MPCs. Each of the tracked MPCs can be seen as originating from a virtual transmitter at an unknown position. By using a time difference of arrival (TDOA) positioning algorithm based on a structure-of-motion approach and translating the tracked phase information into propagation distances, the user... (More)
High resolution radio based positioning and tracking is a key enabler for new or improved cellular services. In this work, we are aiming to track user movements with accuracy down to centimeters using standard cellular bandwidths of 20-40 MHz. The goal is achieved by using phase information from the multi-path components (MPCs) of the radio channels. First, an extended Kalman filter (EKF) is used to estimate and track the phase information of the MPCs. Each of the tracked MPCs can be seen as originating from a virtual transmitter at an unknown position. By using a time difference of arrival (TDOA) positioning algorithm based on a structure-of-motion approach and translating the tracked phase information into propagation distances, the user movements can be estimated with a standard deviation of the error of 4.0 cm. The paper should be viewed as a proof-of-principle and it is shown by measurements that phase based positioning can be a promising solution for movement tracking in cellular systems with extraordinary accuracy. (Less)
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Contribution to conference
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conference name
IEEE International Conference on Communications, ICC 2015
external identifiers
  • scopus:84947785323
language
English
LU publication?
yes
id
b7aa1925-bc8e-431f-ba67-ce5bbaa8875a (old id 7373465)
date added to LUP
2015-07-20 10:31:37
date last changed
2017-11-05 04:56:43
@misc{b7aa1925-bc8e-431f-ba67-ce5bbaa8875a,
  abstract     = {High resolution radio based positioning and tracking is a key enabler for new or improved cellular services. In this work, we are aiming to track user movements with accuracy down to centimeters using standard cellular bandwidths of 20-40 MHz. The goal is achieved by using phase information from the multi-path components (MPCs) of the radio channels. First, an extended Kalman filter (EKF) is used to estimate and track the phase information of the MPCs. Each of the tracked MPCs can be seen as originating from a virtual transmitter at an unknown position. By using a time difference of arrival (TDOA) positioning algorithm based on a structure-of-motion approach and translating the tracked phase information into propagation distances, the user movements can be estimated with a standard deviation of the error of 4.0 cm. The paper should be viewed as a proof-of-principle and it is shown by measurements that phase based positioning can be a promising solution for movement tracking in cellular systems with extraordinary accuracy.},
  author       = {Zhu, Meifang and Vieira, Joao and Kuang, Yubin and Åström, Karl and Molisch, Andreas and Tufvesson, Fredrik},
  language     = {eng},
  title        = {Tracking and positioning using phase information from estimated multi-path components},
  year         = {2015},
}