Range-based radar model structure selection

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Sammanfattning

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.

Originalspråkengelska
Titel på gästpublikation28th European Signal Processing Conference, EUSIPCO 2020 - Proceedings
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Sidor2269-2273
Antal sidor5
ISBN (elektroniskt)9789082797053
DOI
StatusPublished - 2021
Evenemang28th European Signal Processing Conference, EUSIPCO 2020 - Amsterdam, Nederländerna
Varaktighet: 2020 aug 242020 aug 28

Publikationsserier

NamnEuropean Signal Processing Conference
Volym2021-January
ISSN (tryckt)2219-5491

Konferens

Konferens28th European Signal Processing Conference, EUSIPCO 2020
Land/TerritoriumNederländerna
OrtAmsterdam
Period2020/08/242020/08/28

Ämnesklassifikation (UKÄ)

  • Signalbehandling
  • Sannolikhetsteori och statistik

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