ID-ISAR Imaging of Manoeuvering Aircraft,
Abstract
Most operating radar systems don't provide sufficient range resolution to resolve flying targets in range direction. Nevertheless, high cross range resolution can be obtained by 1-D ISAR imaging. This procedure will be successful only, if the target motion is compensated with a high accuracy. In this paper, a motion compensation technique is introduced based on Kalman forward-backward-smoothing on radar position estimates together with spectral information. An iterative error correction procedure (autofocus) yields a cross range image with sufficient resolution. Correct scaling and estimation of the imaging axis direction are derived from the flight path by a simple orientation model.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1989
- Accession Number
- ADP005850
Entities
People
- J. Ender
Organizations
- AGARD