Multi-channel P-ISAR grating lobes cancellation

D. Olivadese, M. Martorella, F. Berizzi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The coherent combination of multiple channels for ISAR imaging purposes in passive radar systems is required in order to achieve a good range resolution. Passive ISAR may provides a suitable means to implement automatic target classification (ATC) and automatic target recognition (ATR). The range resolution is related to the transmitted signal bandwidth, therefore adjacent and non adjacent multi-channel signals should be exploited to obtain a wide band signal. This paper addresses the grating lobes issue that rises when a wide band signal with bandwidth gaps is obtained by adjoining multiple adjacent DVB-T channels. A cancellation technique based on the spatially variant apodization (SVA) technique is proposed. Results both on simulated and real data are provided.

Original languageEnglish
Title of host publicationIET International Conference on Radar Systems, Radar 2012
Edition603 CP
DOIs
Publication statusPublished - 2012
EventIET International Conference on Radar Systems, Radar 2012 - Glasgow, United Kingdom
Duration: 22 Oct 201225 Oct 2012

Publication series

NameIET Conference Publications
Number603 CP
Volume2012

Conference

ConferenceIET International Conference on Radar Systems, Radar 2012
Country/TerritoryUnited Kingdom
CityGlasgow
Period22/10/1225/10/12

Keywords

  • Bandwidth gaps
  • Grating lobes
  • Multi-channel
  • Passive ISAR
  • SVA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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