Method of reconstructing images from synthetic aperture radar's

Details Method of reconstructing images from synthetic aperture radar's Method of reconstructing images from synthetic aperture radar's

1985-08-19

1988-07-19

Tarcza, Thomas H.

Communications: directive radio wave systems and devices (e.g.,

Synthetic aperture radar

342196, G01S 1389

Patent

active

047588381

ABSTRACT:
A method of reconstructing original images from synthetic aperture radar image data, wherein in order to speed up the reconstruction of an original image from image data provided by synthetic aperture radar (SAR), the process for generating a point image pattern in correspondence to each point on the original image and the fast Fourier transformation (FFT) process for the generated point image pattern and 1-line image data are carried out once for every certain number of lines. Positional and phase displacement created on a reconstructed image are corrected by multiplying a phase rotation factor to the product of the FFT-processed point image pattern and 1-line image data.

REFERENCES:
patent: 4084158 (1978-04-01), Slawsby
R. Okkes, "Signal Processing Aspects of Space Borne Sar Systems"; EOSMPR Conf., Record, pp. 421-428; 3/78.
C. Wu; "Software-Based System to Produce Seasat SAR Imagery"; ESA SP-1031 (9/80), pp. 7-13.
Ando, "SAR and Indirect Measuring Technique"; Measurement and Control, (vol. 22, No. 2; 2/83), pp. 27-36.
Bennett et al., "Digital SAR Image Formation Airborne and Satellite Results", Proc.s of 13th Intl. Symposium on Remote Sensing of Environment, pp. 337-348 (1979).

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