Improved passive SAR imaging with DVB-T transmissions

Research output: Contribution to journalArticle

Colleges, School and Institutes

Abstract

This article investigates passive synthetic aperture radar (SAR) image formation using Terrestrial Digital Video Broadcast (DVB-T) transmitters of opportunity and an airborne receiver. The proposed airborne system does not use separate channels for direct and reflected signal reception. The proposed image formation algorithm suppresses artifacts due to the presence of the direct signal in radar echo data using modified CLEAN method and accounts for unknown irregularities in airborne platform motion using a map-drift autofocus (MDA) technique. The algorithms are theoretically derived and experimentally confirmed via an appropriate airborne campaign, and their experimental performance is measured.

Details

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalIEEE Transactions on Geoscience and Remote Sensing
Early online date19 Feb 2020
Publication statusE-pub ahead of print - 19 Feb 2020

Keywords

  • synthetic aperture radar, radar imaging, signal processing algorithms, receivers, spaceborne radar, digital video broadcasting, passive synthetic aperture radar (SAR), SAR autofocus, SAR image formation, Terrestrial Digital Video Broadcast (DVB-T)