Tracking aperture radar

G - Physics – 01 – S

Patent

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Details

343/10, 351/19,

G01S 13/90 (2006.01) G01S 7/30 (1980.01)

Patent

CA 1165839

TRACKING APERTURE RADAR ABSTRACT OF THE DISCLOSURE The transmitting antenna of a side looking radar system for high flying aircraft and space vehicles emits radar pulses which illuminate a narrow patch of terrain which is elongated in a direction orthogonal to the direction of progression of the vehicle carrying the radar system. Reflected pulses are received in a receiving antenna which illuminates an area contained within the patch and has the width of the patch but a small fraction of its range extent. The patch is scanned with the receive area. By the use of this system, for a given antenna size the previous transmitter power dependence on frequency is avoided, thus allowing much higher R.F. frequencies to be used with available transmitter power.

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