Radar scan converter for producing an aggregate radial scan patt

Details Radar scan converter for producing an aggregate radial scan patt Radar scan converter for producing an aggregate radial scan patt

1995-06-05

1996-09-10

Lobo, Ian J.

Communications: directive radio wave systems and devices (e.g.,

With particular circuit

Display

G01S 7293, G01S 704

Patent

active

055549926

ABSTRACT:
A radar scan conversion from radar data in polar coordinates to radar data in rectangular coordinates is employed to supply (x,y) coordinate data to a display, which has variable azimuthal pixel resolution that increases from the center of the display to its periphery. An aggregate radial scan pattern is generated on the display that consists of a plurality of radials each of which have active lengths that span one or more of a plurality of selected boundary resolution zones of the display. These zones are defined by a series of different hyperbolically-based resolution boundaries which define resolution zones of increasing azimuthal resolution values as the zones extend further from the center of said display towards the periphery of said display. The number of radials that are generated on said display match the average azimuthal resolution of said display for each zone. A process wherein such aggregate radial scan pattern is formed such that the number of radials in each zone from the outermost zone to the center of said display is such that each zone is related to twice as many radials as is its next innermost neighboring zone.

REFERENCES:
patent: 4697185 (1987-09-01), Thomas et al.
patent: 4745475 (1988-05-01), Bicknell
patent: 4931801 (1990-06-01), Hancock
patent: 5126747 (1992-06-01), Ren et al.
patent: 5414429 (1995-05-01), Giraudy

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