Title :
Comparison of two algorithms for correcting zero-Doppler clutter in turntable ISAR imagery
Author :
Showman, Gregory A. ; Richards, Mark A. ; Sangston, K. James
Author_Institution :
Georgia Tech. Res. Inst., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
Inverse synthetic aperture radar (ISAR) imaging on a turntable-tower test range permits convenient generation of high resolution two- and three-dimensional images of radar targets under controlled conditions. However, turntable ISAR images suffer zero-Doppler clutter (ZDC) artifacts not found in airborne SAR images. ISAR images formed at Georgia Tech.´s Electromagnetic Test Facility (EMTF) are used to demonstrate and compare two signal processing techniques to suppress zero-Doppler clutter while minimizing effects on the target signature. The first removes ZDC components in the data domain, whereas the second performs cancellation in the image domain.
Keywords :
image resolution; interference suppression; radar applications; radar clutter; radar imaging; radar resolution; synthetic aperture radar; test facilities; Electromagnetic Test Facility; Georgia Tech; ISAR imaging; airborne SAR images; algorithms; clutter cancellation; clutter suppression; controlled conditions; data domain; high resolution 2D images; high resolution 3D images; image domain; image generation; inverse synthetic aperture radar; radar targets; signal processing techniques; target signature; turntable ISAR imagery; turntable-tower test range; zero-Doppler clutter artifacts; zero-Doppler clutter correction; Clutter; High-resolution imaging; Image resolution; Inverse synthetic aperture radar; Radar imaging; Signal processing algorithms; Signal resolution; Synthetic aperture radar; Test facilities; Testing;
Conference_Titel :
Signals, Systems & Computers, 1998. Conference Record of the Thirty-Second Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5148-7
DOI :
10.1109/ACSSC.1998.750896
