Implementation aspects of wigner-hough transform based detectors for LFMCW signals

Kani K. Guner, Burcu Erkmen, Taylan O. Gulum, Yasin Erdogan, Tulay Yildirim, Lutfiye Durak Ata

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

8 Citations (Scopus)

Abstract

Linear Frequency Modulated Continuous Waveform (LFMCW) waveforms are widely used in Low Probability of Intercept (LPI) radars. In this work, Wigner- Hough based transforms are used to detect such waveforms. They are investigated for three aims: Minimizing the effects of Wigner-Ville Distribution (WVD) cross-Terms in the transforms, reducing the complexity of hardware implementation and producing the transform results faster. Modified Wigner-Hough Transform (MWHT) is analyzed for the first aim. Sample and hold type intermediate sampling and column-based thresholding techniques are examined for the second and third aims. A signal database (3000 signals with different SNR levels) is created and used to evaluate the performances of 8 alternative methods on probability of detection and probability of chirp rate estimation. The results are compared for -3dB down to -14dB SNR levels. Proposed method is found to be the best candidate to be implemented on Field Programmable Gate Arrays (FPGA) since it produces better performance with less computational density.

Original languageEnglish
Title of host publication2016 39th International Conference on Telecommunications and Signal Processing, TSP 2016
EditorsNorbert Herencsar
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages441-444
Number of pages4
ISBN (Electronic)9781509012886
DOIs
Publication statusPublished - 28 Nov 2016
Event39th International Conference on Telecommunications and Signal Processing, TSP 2016 - Vienna, Austria
Duration: 27 Jun 201629 Jun 2016

Publication series

Name2016 39th International Conference on Telecommunications and Signal Processing, TSP 2016

Conference

Conference39th International Conference on Telecommunications and Signal Processing, TSP 2016
Country/TerritoryAustria
CityVienna
Period27/06/1629/06/16

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

Keywords

  • Column-based thresholding
  • FPGA
  • LFMCW
  • LPI radar
  • Modified wigner-hough transform

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