Range-based radar model structure selection
(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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- author
- Jansson, Andreas LU ; Elvander, Filip LU ; Almers, Peter LU and Jakobsson, Andreas LU
- organization
- publishing date
- 2021
- 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}}, }