ISAR imaging of rolling, pitching and yawing targets

Author

Berizzi, F. ; Dian, M.

Author_Institution

Dept. of Inf. Eng., Pisa Univ., Italy

fYear

1996

fDate

8-10 Oct 1996

Firstpage

346

Lastpage

349

Abstract

This paper deals with the problem of ISAR imaging of targets in rectilinear motion in the presence of pitch, roll and yaw. We define a model of the received signal in the presence of the angular motions and we calculate the impulse response of the imaging system. From this preliminary analysis we find that the ISAR system behaves as a spatially variant linear filter. This effect produces a blurring of the reconstructed image. We also determine the conditions under which the effects of pitch, roll and yaw motions are negligible and finally we validate the theoretical analysis by presenting and discussing some simulation results

Keywords

electromagnetic wave scattering; image reconstruction; image resolution; inverse problems; motion estimation; radar cross-sections; synthetic aperture radar; transient response; ISAR imaging; ISAR system; angular motions; high resolution images; ideal scatterers; imaging system; impulse response; pitching targets; received signal model; reconstructed image blurring; rectilinear motion; rolling targets; simulation results; spatially variant linear filter; yawing targets; Analytical models; Bandwidth; Image motion analysis; Image reconstruction; Image resolution; Motion analysis; Nonlinear filters; Radar imaging; Signal resolution; Trajectory;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 1996. Proceedings., CIE International Conference of

Conference_Location

Beijing

Print_ISBN

0-7803-2914-7

Type

conf

DOI

10.1109/ICR.1996.574458

Filename

574458