Range-based radar model structure selection

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

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 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.

Details

Authors
Organisations
External organisations
  • Acconeer AB
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Signal Processing
  • Probability Theory and Statistics

Keywords

  • Misspecified Cramér-Rao lower bound, Radar systems, Range estimation
Original languageEnglish
Title of host publication28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages2269-2273
Number of pages5
ISBN (Electronic)9789082797053
Publication statusPublished - 2021
Publication categoryResearch
Peer-reviewedYes
Event28th European Signal Processing Conference, EUSIPCO 2020 - Amsterdam, Netherlands
Duration: 2020 Aug 242020 Aug 28

Publication series

NameEuropean Signal Processing Conference
Volume2021-January
ISSN (Print)2219-5491

Conference

Conference28th European Signal Processing Conference, EUSIPCO 2020
CountryNetherlands
CityAmsterdam
Period2020/08/242020/08/28