The effect of orbital motions on synthetic aperture radar imagery of ocean waves
Abstract
The paper investigates the formation of wave-like patterns in synthetic aperture radar images of the ocean surface which are caused by orbital motions. In addition the degradation in azimuthal resolution due to these motions is calculated by applying a least square fit to the plane history. Formulas are given which describe the variation of intensity in azimuthal direction in the image plane. Finally, formulas are presented which describe the degradation in azimuthal resolution as a function of ocean wave amplitude, wave frequency, direction of wave propagation, and radar wavelength, incidence angle, and integration time.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- September 1979
- DOI:
- 10.1109/TAP.1979.1142163
- Bibcode:
- 1979ITAP...27..685A
- Keywords:
-
- Instrument Errors;
- Ocean Surface;
- Particle Motion;
- Radar Imagery;
- Synthetic Aperture Radar;
- Water Waves;
- Aerial Photography;
- Curve Fitting;
- Error Analysis;
- Least Squares Method;
- Microwave Transmission;
- Radar Transmission;
- Remote Sensors;
- Satellite-Borne Photography;
- Spacecraft Instrumentation