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6198429 |
Radar and like systems and method for improving image quality
The present invention provides a radar apparatus and like systems and method which comprise coordinate converting means for signals defined in a polar coordinate system to corresponding signals...
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5742297 |
Apparatus and method for constructing a mosaic of data
Apparatus and method combine, in real time, weather radar data in digital format from multiple radar sites into a mosaic covering a regional or national area (e.g., the continental United States)....
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5530450 |
Radar scan converter for PPI rectangular and PPI offset rectangular modes
A process provides radar scan conversion from radar amplitude data in polar coordinates to rectangular coordinates by a digital computer which receives (r,θ) coordinate amplitude data from a radar...
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5519401 |
Programmed radar coordinate scan conversion
A pseudo-code representation and a C language representation of a scan converter system whereby radar amplitude data specified in polar coordinates may be displayed on a computer monitor display...
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5351055 |
Radar apparatus
A radar apparatus displays echo signals in a manner that desired echo signals can be easily distinguished from unwanted echo signals such as sea clutter and the like and eliminated, when any one of...
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4862427 |
Sonar system with area moving target indicator
A continuous-transmission frequency-modulated (CTFM) scan converted sonar with improved capability for detecting swimmers, miniature submarines and other small intruders in harbors and inlets, and...
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4829308 |
Raster display system
An echo receiving system is provided for periodically scanning a region for echo returns obtained in polar coordinates and for providing a visual display of such received echo returns in a...
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4688046 |
ADF bearing and location for use with ASR and ASDE displays
An aircraft locating system identifies on a TV format radar display the position of a specific aircraft based on an RF transmission from the aircraft on an RF channel. The locating system includes...
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4443797 |
Radar display apparatus
Radar display apparatus employs digital techniques to convert range/azimuth scan to T.V. scan. A digital store contains data defining the brightness of levels for the picture cells of a T.V....
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