Accession Number:

ADP005850

Title:

ID-ISAR Imaging of Manoeuvering Aircraft,

Descriptive Note:

Corporate Author:

ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (FRAN CE)

Personal Author(s):

Report Date:

1989-05-01

Pagination or Media Count:

9.0

Abstract:

Most operating radar systems dont 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.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE