Improved passive SAR imaging with DVB-T transmissions
Research output: Contribution to journal › Article
Authors
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 language | English |
|---|---|
| Pages (from-to) | 1-11 |
| Number of pages | 11 |
| Journal | IEEE Transactions on Geoscience and Remote Sensing |
| Early online date | 19 Feb 2020 |
| Publication status | E-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)