Algorithm for radar coordinate conversion in digital scan...

Details Algorithm for radar coordinate conversion in digital scan... Algorithm for radar coordinate conversion in digital scan...

G - Physics

01

S

343/51, 343/54

G01S 7/298 (2006.01)

Patent

CA 1210117

ABSTRACT Disclosed is a system for high speed conversion of radar formats from polar coordinates to cartesian coordinates. From an initial address Xi Yi where a radar pulse crosses a display, subsequent addresses are determined by adding constant values sin .theta.i and cos .theta.i to Xi and Yi. This is faster than the prior method of calculating Xi and Yi by multiplying Ri (range) by sin .theta.i and cos .theta.i. Also disclosed is a system for filling the display between adjacent radials at long ranges where spoking of the display tends to occur. This is done by adding constant increments to one cartesian value on one vector until the next vector is reached while maintaining the other cartesian value constant.

418525

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