Multi-targets detection method applied in particular to...

Details Multi-targets detection method applied in particular to... Multi-targets detection method applied in particular to...

G - Physics

01

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G01S 7/295 (2006.01) G01S 7/292 (2006.01) G01S 13/00 (2006.01) G01S 13/42 (2006.01) G01S 13/72 (2006.01) G01S 13/524 (2006.01)

Patent

CA 2424151

A radar comprising transmitter means for generating bursts of radar pulses, each scan of a radar consisting of a number (N b) of bursts, the method comprises, for each scan k : - a first step, in which a radar cell is pre-selected in a validation gate ; - a second step, in which a Track-Before-Detect processing is initialized upon the pre-selected cells, using a track filter to construct the validation gate associated to the next scan k+1 ; the steps being repeated scan to scan. The invention can be applied to surveillance radars, for example with multi- beamforming in elevation, and more generally to all kinds of radars.

Un radar comprend des moyens d'émission pour produire des rafales d'impulsions radar, chaque balayage radar consistant en un certain nombre (Nb) de rafales. La méthode applicable comprend les étapes qui suivent. Pour chaque balayage k, la première étape, au cours de laquelle une cellule radar est présélectionnée dans une porte de validation; la seconde étape, au cours de laquelle un traitement de poursuite avant détection est déclenché, à la préselection des cellules concernées, au moyen d'un filtre de poursuite pour créer la porte de validation associée au balayage k+1 suivant. Ces étapes se répètent d'un balayage à l'autre. Cette invention s'applique aux radars de surveillance, par exemple, à ceux du type à conformation de faisceaux multiples en site, et, de manière plus générale, à tous les types de radars.

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