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Range-based radar model structure selection

Jansson, Andreas LU orcid ; Elvander, Filip LU ; Almers, Peter LU and Jakobsson, Andreas LU orcid (2021) 28th European Signal Processing Conference, EUSIPCO 2020 In European Signal Processing Conference 2021-January. p.2269-2273
Abstract

In this work, we study under which circumstances it is appropriate to use simplified models for range determination using radar. Typically, pulsed radar systems result in the backscattered, demodulated, and matched signal having a chirp signal structure, with the frequency rate being related to the range to the reflecting target and the relative velocity of the transmitter and reflector. Far from the target, and at low relative velocities, one may achieve preferable location estimates by neglecting the frequency rate, treating the received signal as being purely sinusoidal, whereas at close range, neglecting the frequency rate notably reduces the achievable performance. Using misspecified estimation theory, we derive a lower bound of... (More)

In this work, we study under which circumstances it is appropriate to use simplified models for range determination using radar. Typically, pulsed radar systems result in the backscattered, demodulated, and matched signal having a chirp signal structure, with the frequency rate being related to the range to the reflecting target and the relative velocity of the transmitter and reflector. Far from the target, and at low relative velocities, one may achieve preferable location estimates by neglecting the frequency rate, treating the received signal as being purely sinusoidal, whereas at close range, neglecting the frequency rate notably reduces the achievable performance. Using misspecified estimation theory, we derive a lower bound of the achievable performance when neglecting the true signal structure, and show at which ranges one model is preferable to the other. Numerical results from a mm-wave radar system illustrate the results.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Misspecified Cramér-Rao lower bound, Radar systems, Range estimation
host publication
28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings
series title
European Signal Processing Conference
volume
2021-January
article number
9287631
pages
5 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
28th European Signal Processing Conference, EUSIPCO 2020
conference location
Amsterdam, Netherlands
conference dates
2020-08-24 - 2020-08-28
external identifiers
  • scopus:85099284791
ISSN
2219-5491
ISBN
9789082797053
DOI
10.23919/Eusipco47968.2020.9287631
language
English
LU publication?
yes
id
059a44f5-0680-43bc-91c3-6c4f5e47d645
date added to LUP
2021-01-25 09:21:26
date last changed
2022-04-26 23:50:52
@inproceedings{059a44f5-0680-43bc-91c3-6c4f5e47d645,
  abstract     = {{<p>In this work, we study under which circumstances it is appropriate to use simplified models for range determination using radar. Typically, pulsed radar systems result in the backscattered, demodulated, and matched signal having a chirp signal structure, with the frequency rate being related to the range to the reflecting target and the relative velocity of the transmitter and reflector. Far from the target, and at low relative velocities, one may achieve preferable location estimates by neglecting the frequency rate, treating the received signal as being purely sinusoidal, whereas at close range, neglecting the frequency rate notably reduces the achievable performance. Using misspecified estimation theory, we derive a lower bound of the achievable performance when neglecting the true signal structure, and show at which ranges one model is preferable to the other. Numerical results from a mm-wave radar system illustrate the results.</p>}},
  author       = {{Jansson, Andreas and Elvander, Filip and Almers, Peter and Jakobsson, Andreas}},
  booktitle    = {{28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings}},
  isbn         = {{9789082797053}},
  issn         = {{2219-5491}},
  keywords     = {{Misspecified Cramér-Rao lower bound; Radar systems; Range estimation}},
  language     = {{eng}},
  pages        = {{2269--2273}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{European Signal Processing Conference}},
  title        = {{Range-based radar model structure selection}},
  url          = {{http://dx.doi.org/10.23919/Eusipco47968.2020.9287631}},
  doi          = {{10.23919/Eusipco47968.2020.9287631}},
  volume       = {{2021-January}},
  year         = {{2021}},
}