Efficient technique for estimating elevation angle when...

Details Efficient technique for estimating elevation angle when... Efficient technique for estimating elevation angle when...

G - Physics

01

S

G01S 13/42 (2006.01) G01S 13/72 (2006.01)

Patent

CA 2541434

A method and apparatus for estimating elevation angle when using a broad search beam such as a cosecant-squared beam is provided. The range of a target detected during a search with a broad beam covering a broad angular search area is determined. Based on the determined range, consecutive beams are transmitted at increasing search elevation angles in the broad angular search area. Echo signals of the consecutive beams are used to determine an elevation angle estimate for the target.

L'invention concerne un procédé et un appareil d'estimation d'angle de site lors de l'utilisation d'un faisceau de surveillance large tel qu'un faisceau à cosécante carrée. La distance d'une cible détectée pendant une surveillance avec un faisceau large couvrant une zone de surveillance angulaire large est déterminée. Sur la base de la distance déterminée, des faisceaux consécutifs sont transmis à des angles de site de surveillance croissants, dans la zone de surveillance angulaire large. Les signaux d'échos des faisceaux consécutifs sont utilisés pour déterminer une estimation d'angle de site de la cible.

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