Apparatus for wind shear compensation in an mti radar system

Details Apparatus for wind shear compensation in an mti radar system Apparatus for wind shear compensation in an mti radar system

G - Physics

01

S

343/98

G01S 7/34 (2006.01) G01S 13/524 (2006.01) H01Q 3/26 (2006.01) G01S 7/28 (2006.01)

Patent

CA 1341213

The invention relates to apparatus for reducing the masking effect in the doppler frequency domain of wind sheared clutter upon the radar returns of wing targets. The invention consists in forming two beams from the elements of a radar antenna array by means of adjustable complex weights which are then summed. One of the two beams is then delayed by a predetermined amount and added algebraically to the other beam to form a composite beam containing a narrow trough-like depression in beam angle / doppler frequency space. Means are then provided for adjusting the weights to bring coincidence between the depression and the clutter to cause attenuation of the clutter with a minimum reduction in the usable doppler frequency domain.

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