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  1. Synthetic aperture radar images with composite azimuth resolution

    A synthetic aperture radar (SAR) image is produced by using all phase histories of a set of phase histories to produce a first pixel array having a first azimuth resolution, and using less than all phase histories of the set to produce a second pixel array having a second azimuth resolution that is coarser than the first azimuth resolution. The first and second pixel arrays are combined to produce a third pixel array defining a desired SAR image that shows distinct shadows of moving objects while preserving detail in stationary background clutter.
  2. An X-band Crevasse Detection Radar for the Arctic and Antarctic.

    Abstract not provided.
  3. Tracking moving radar targets with parallel, velocity-tuned filters

    Radar data associated with radar illumination of a movable target is processed to monitor motion of the target. A plurality of filter operations are performed in parallel on the radar data so that each filter operation produces target image information. The filter operations are defined to have respectively corresponding velocity ranges that differ from one another. The target image information produced by one of the filter operations represents the target more accurately than the target image information produced by the remainder of the filter operations when a current velocity of the target is within the velocity range associated with themore » one filter operation. In response to the current velocity of the target being within the velocity range associated with the one filter operation, motion of the target is tracked based on the target image information produced by the one filter operation.« less
  4. GFF Specification for SAR Systems

    This document provides the basic GFF format definition for a GFF file. This document covers the contents of the main header and the basic GFF file structure. The contents of specific extensions are covered in a separate document.
  5. GFF Data Extensions

    To define the GFF extension and the data contained in the extension.
  6. Synthetic aperture design for increased SAR image rate

    High resolution SAR images of a target scene at near video rates can be produced by using overlapped, but nevertheless, full-size synthetic apertures. The SAR images, which respectively correspond to the apertures, can be analyzed in sequence to permit detection of movement in the target scene.
  7. Synthetic aperture design for increased SAR image rate

    High resolution SAR images of a target scene at near video rates can be produced by using overlapped, but nevertheless, full-size synthetic apertures. The SAR images, which respectively correspond to the apertures, can be analyzed in sequence to permit detection of movement in the target scene.

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"Bielek, Timothy P"

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