Synthetic aperture perimeter array radar

H - Electricity – 01 – Q

Patent

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Details

H01Q 3/26 (2006.01)

Patent

CA 2615821

A perimeter antenna array for a radar, in particular a slope monitoring radar, formed from a pair of parallel linear arrays of receiver elements and a pair of parallel linear arrays of receiver elements, together forming a rectangle of receiver and transmitter elements. Signals are switched to the transmitter elements and received by the receiving elements. The signals are processed to obtain signals for virtual elements located equidistant between transmitting and receiving elements. The signals from the virtual elements are analysed to produce a radar image.

L'invention concerne un réseau d'antennes périmétriques destiné à un radar, en particulier à un radar de surveillance de pente, formé d'une paire de rangées linéaires parallèles d'éléments récepteurs et d'une paire de rangées linéaires parallèles d'éléments émetteurs, formant ensemble un rectangle d'éléments récepteurs et émetteurs. Des signaux sont commutés vers les éléments émetteurs et sont reçus par les éléments récepteurs. Les signaux sont traités afin d'obtenir des signaux destinés à des éléments virtuels situés à équidistance entre les éléments émetteurs et récepteurs. Les signaux provenant des éléments virtuels sont analysés afin de produire une image radar.

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