Weight windows - An improved approach

Itzik Cohen, Nadav Levanon

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

8 Scopus citations

Abstract

Weight windows are an important part of spectral analysis, especially in radar Doppler processing. Presently their study is in a stalemate, accepting the present tradeoff between mainlobe width and sidelobes attenuation as a fait accompli. An exception is Stankwitz et. al. Apodization technique for sidelobe reduction in SAR images. Our paper suggests an improved approach to windowing with performances expected from "Tri-Apodization" but with computational complexity of "Dual Apodization". The new approach achieves smaller SNR loss than a single low-sidelobes window. Basically the processor performs two FFTs following different windows and chooses the minimum at each output element. The predicted improved performances are confirmed by results from measured radar data.

Original languageEnglish
Title of host publication2014 IEEE 28th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479959877
DOIs
StatePublished - 2014
Event2014 28th IEEE Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014 - Eilat, Israel
Duration: 3 Dec 20145 Dec 2014

Publication series

Name2014 IEEE 28th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014

Conference

Conference2014 28th IEEE Convention of Electrical and Electronics Engineers in Israel, IEEEI 2014
Country/TerritoryIsrael
CityEilat
Period3/12/145/12/14

Keywords

  • Dolph-Chebyshev
  • Doppler response
  • FFT
  • Hamming
  • Radar
  • Sidelobe reduction
  • Weight windows

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