The Canadian earth observation satellite, RADARSAT-1 was launched on November 4, 1995. Since then more than three years of successful operation have been completed, utilizing data for their intended applications. In this paper, we are primarily concerned with
image quality associated with the image products generated by the Canadian Data Processing Facility (CDPF) for different SAR operating beams and modes. A chronology is presented which reviews the image quality evolution of RADARSAT-1 since launch, complementing previously presented reviews on this
subject. Data will be given on various image quality parameters related to impulse response, location error, antenna pattern, and radiometric stability.
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