Radar arrangements and methods

Details Radar arrangements and methods Radar arrangements and methods

G - Physics

01

S

343/2

G01S 13/00 (2006.01) H01Q 3/08 (2006.01) H01Q 3/20 (2006.01)

Patent

CA 1335607

A radar arrangement has a transmitter/receiver unit which is rotatable and has an aerial projecting an elongate radar beam onto a reflector which rotates there- with. The reflected beam therefore scans the target area. Target reflections are reflected by the reflector on to the aerial for detection thereby. The reflector is switchable about the vertical axis through 90° with respect to the aerial. In one position, the beam is therefore projected into, and scans, the target area with its elon- gate dimension vertical (so as to be best suited to detect rapidly approaching targets of small aspect such as air- craft or missiles), and in the other position the beam is projected into, and scans, the target area with its elon- gate dimension horizontal (so as to be best suited to detect intermittent targets appearing in relatively slow moving positions such as the rotor blades of a helicopter).

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