Radio signal direction finder

Details Radio signal direction finder Radio signal direction finder

G - Physics

01

S

G01S 3/48 (2006.01) G01S 3/04 (2006.01)

Patent

CA 2512637

A radio direction finding (RDF) receiver using an array of receiving antennas for known signals with a relatively large frequency uncertainty is described. Additional sensitivity for low signal to noise environments, compared to a conventional receiver used for direction of arrival (DOA) measurements, is obtained. This is achieved by using the outputs of all the receiving antennas combined to provide coherent signal to noise gain, but without the associated increased directivity of the larger aperture.

Récepteur radiogoniométrique (RDF) utilisant un groupe d'antennes de réception pour des signaux connus à incertitude de fréquence relativement élevée. On obtient une sensibilité supplémentaire pour des environnements à faible rapport signal / bruit, par rapport à un récepteur classique utilisé pour des mesures de direction du point d'origine (DOA). On y parvient en utilisant les sorties de toutes les antennes réceptrices, combinées pour fournir un gain cohérent signal / bruit, mais sans l'augmentation associée de directivité de la plus grande ouverture.

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