Autofocus image reconstruction from Barcer´s phase code modulated ISAR signals

Author

Lazarov, A.D. ; Minchev, Chavab Nikolaev

Author_Institution

Artillery & Air-Defence Mil. Acad., Shoumen, Bulgaria

Volume

2

fYear

2002

fDate

27-31 Oct. 2002

Abstract

In the present paper the model of inverse synthetic aperture radar (ISAR) signal with Barcer´s code phase modulation is developed. To cope with the image blurring due to the range migration of object´s point scatterers an autofocusing technique for ISAR signal processing is performed. Correlation algorithm for range compression and spectral fast Fourier transform for azimuth compression are exploited. The presented image reconstruction procedures are invariant to the object´s trajectory parameters. Numerical experiment over the simulated ISAR data is also accomplished.

Keywords

data compression; fast Fourier transforms; image reconstruction; military radar; phase modulation; synthetic aperture radar; Barcer´s code phase modulation; ISAR signals; autofocus image reconstruction; azimuth compression; correlation algorithm; image blurring; inverse synthetic aperture radar; point scatterers; range compression; range migration; signal processing; spectral fast Fourier transform; Fast Fourier transforms; Image coding; Image reconstruction; Inverse problems; Inverse synthetic aperture radar; Modulation coding; Phase modulation; Radar scattering; Radar signal processing; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Digital Avionics Systems Conference, 2002. Proceedings. The 21st

Print_ISBN

0-7803-7367-7

Type

conf

DOI

10.1109/DASC.2002.1052985

Filename

1052985