Once you secure the PDF, focus on these three sections as your high-priority reading.

Commonly used in Spotlight mode for very high-resolution images of specific patches. 3. Advanced Processing Modes

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Azimuth resolution is determined by the antenna beamwidth. A real aperture radar has poor azimuth resolution at long ranges. SAR improves this by utilizing the motion of the platform. As the radar moves, a target is illuminated for a period known as the "integration time." By coherently processing the returns from different along-track positions, a long synthetic antenna is synthesized, drastically improving resolution.

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The transformation from raw data to a focused image typically follows these sequential stages: