Communications: directive radio wave systems and devices (e.g. – With particular circuit – Display
Patent
1991-06-28
1993-10-05
Sotomayor, John B.
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
Display
G01S 712
Patent
active
052509540
ABSTRACT:
A method to enhance target detectability on a radar plan position indicator s described which includes the receiving of coherent pulse-burst waveforms from a target so that at least one complete burst is included in each dwell of a scanning surveillance fan beam. A fast fourier transform is performed on each returned coherent burst to form Doppler channels in predetermined range cells. The largest signal of the Doppler channels in each range cell is then selected and color coded. The color coded signals are applied to a plan position indicator whereby target images are viewable. Preferably, the Doppler channels are color coded over a rainbow spectrum so that a white background is produced and target images appear as tracks on a microprocessor-based raster-type plan position indicator. A continuity test and threshold test are also utilized so that target velocity and position are determined.
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Linde George J.
Temes Clifford L.
McDonnell Thomas E.
Miles Edward F.
Sotomayor John B.
The United States of America as represented by the Secretary of
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