Accuracy improvement in range measurements of short-range FSK radars

Jose Maria Munoz-Ferreras, Jing Wang, Tianyi Zhou, Roberto Gomez-Garcia, Changzhi Li, Lixin Ran

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

Frequency-shift-keying (FSK) radars are used to measure the absolute range and radial speed of multiple moving targets with different velocities in short-range scenarios. The range is calculated from a well-known formula that depends on the phase difference of the in-phase/quadrature (I/Q) components associated with the two time-multiplexed transmitted tones. From a signal perspective, this work demonstrates that an additional novel term in the equation must be compensated to gain enhanced range accuracy in the measurements. This may facilitate the exploitation of longer waveform periods, leading to a relaxation in the stringent locking-time requirements currently imposed on the phase-locked loops of the signal-generation blocks in FSK radars. Moreover, detailed simulation examples for multiple moving targets are addressed. The obtained results validate the theoretical framework and the proposed computationally-efficient compensation algorithm for improved absolute-range-measurement accuracy in FSK radars.

Original languageEnglish
Title of host publication2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
ISBN (Electronic)9781538663462
DOIs
StatePublished - Jun 29 2018
Event2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Chengdu, China
Duration: May 6 2018May 9 2018

Publication series

Name2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings

Conference

Conference2018 IEEE MTT-S International Wireless Symposium, IWS 2018
CountryChina
CityChengdu
Period05/6/1805/9/18

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