Localization of an RF source inside the Human body for Wireless Capsule Endoscopy
Chandra, Rohit LU ; Johansson, Anders J LU
and Tufvesson, Fredrik
LU
(2013)
8th International Conference on Body Area Networks, BodyNets 2013
p.48-54
- Abstract
- This paper presents a method based on the phase dierence
of arrival and the non-linear least square estimation to lo-
calize a radio-frequency (RF) source, e.g a wireless capsule
endoscope, inside the human body. The phase dierence of
arrival at multiple frequencies of a signal is used to estimate
the distance of the source to a receiver. The linear least
square estimation is used to estimate the initial position of
the source followed by a non-linear least square method to
improve the localization accuracy. The method is applied on
noise free simulated data obtained from FDTD simulations
in the 403.5 MHz MedRadio band of a simple ... (More) - This paper presents a method based on the phase dierence
of arrival and the non-linear least square estimation to lo-
calize a radio-frequency (RF) source, e.g a wireless capsule
endoscope, inside the human body. The phase dierence of
arrival at multiple frequencies of a signal is used to estimate
the distance of the source to a receiver. The linear least
square estimation is used to estimate the initial position of
the source followed by a non-linear least square method to
improve the localization accuracy. The method is applied on
noise free simulated data obtained from FDTD simulations
in the 403.5 MHz MedRadio band of a simple homogeneous
phantom and a more realistic heterogeneous phantom. The
distance between the true position and the estimated po-
sition is found to be within 1 cm for the simulated cases
showing the possibility to use the proposed method for lo-
calization of an RF source inside the human body, as long
as the signal to noise ratio is high enough. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3972275
- author
- Chandra, Rohit
LU
; Johansson, Anders J
LU
and Tufvesson, Fredrik
LU
- organization
- publishing date
- 2013
- type
- Contribution to conference
- publication status
- published
- subject
- pages
- 48 - 54
- conference name
- 8th International Conference on Body Area Networks, BodyNets 2013
- conference dates
- 2013-09-30 - 2013-10-02
- DOI
- 10.4108/icst.bodynets.2013.253713
- project
- EIT_UPD Wireless Communication for Ultra Portable Devices
- language
- English
- LU publication?
- yes
- id
- 98eb5a1b-93b9-45e1-ae27-b6562f37fc09 (old id 3972275)
- date added to LUP
- 2016-04-04 14:30:03
- date last changed
- 2019-04-30 23:05:03
@misc{98eb5a1b-93b9-45e1-ae27-b6562f37fc09,
abstract = {{This paper presents a method based on the phase dierence<br/><br>
of arrival and the non-linear least square estimation to lo-<br/><br>
calize a radio-frequency (RF) source, e.g a wireless capsule<br/><br>
endoscope, inside the human body. The phase dierence of<br/><br>
arrival at multiple frequencies of a signal is used to estimate<br/><br>
the distance of the source to a receiver. The linear least<br/><br>
square estimation is used to estimate the initial position of<br/><br>
the source followed by a non-linear least square method to<br/><br>
improve the localization accuracy. The method is applied on<br/><br>
noise free simulated data obtained from FDTD simulations<br/><br>
in the 403.5 MHz MedRadio band of a simple homogeneous<br/><br>
phantom and a more realistic heterogeneous phantom. The<br/><br>
distance between the true position and the estimated po-<br/><br>
sition is found to be within 1 cm for the simulated cases<br/><br>
showing the possibility to use the proposed method for lo-<br/><br>
calization of an RF source inside the human body, as long<br/><br>
as the signal to noise ratio is high enough.}},
author = {{Chandra, Rohit and Johansson, Anders J and Tufvesson, Fredrik}},
language = {{eng}},
pages = {{48--54}},
title = {{Localization of an RF source inside the Human body for Wireless Capsule Endoscopy}},
url = {{https://lup.lub.lu.se/search/files/6374738/3972280.pdf}},
doi = {{10.4108/icst.bodynets.2013.253713}},
year = {{2013}},
}