Receiver for determining a mobile object orientation

Details Receiver for determining a mobile object orientation Receiver for determining a mobile object orientation

G - Physics

01

S

G01S 5/14 (2006.01) G01S 1/00 (2006.01) G01S 1/04 (2006.01) G01S 5/02 (2006.01) H04B 1/18 (2006.01)

Patent

CA 2411107

The invention concerns the determination of a mobile object orientation using GPS signals. According to the invention, a receiver is provided (16) comprising a single channel assembly for digital processing of signals derived from several antennae (10, 12), said signals reaching the receiver through a single connection (17) which also serves to power antenna preamplifiers and to multiplex at least two antennae. The digital processing channels of the satellite signals use the signals of the antennae to provide phase-locking of a local pseudo-random code, but use only the signals derived from one main antenna (10) to provide phase-locking of a local carrier phase. The phase-shift of the signals between the antennae, which serves to determine the orientation of vectors linking the antennae knowing their relative positions, is calculated from the correlation digital values which conventionally serve in any GPS receiver to establish phase and carrier lock loop signals. The invention is in particular useful for determining a ship's heading. The invention is useful for any type of carrier: pedestrian, land vehicle, ship or aeroplane.

L'invention concerne la détermination d'orientation d'un mobile à l'aide de signaux GPS. Selon l'invention, on prévoit un récepteur (16) comportant un seul ensemble de canaux de traitement numérique des signaux issus de plusieurs antennes (10, 12), ces signaux arrivant au récepteur par une liaison unique (17) qui sert également à l'alimentation en énergie des préamplificateurs d'antenne ainsi qu'au multiplexage d'au moins deux antennes. Les canaux de traitement numérique des signaux satellites utilisent les signaux des antennes pour effectuer l'asservissement d'un code pseudo-aléatoire local, mais utilisent seulement les signaux issus d'une antenne principale (10) pour effectuer l'asservissement d'une phase de porteuse locale. Le déphasage des signaux entre les antennes, qui sert à déterminer l'orientation des vecteurs reliant les antennes connaissant leurs positions relatives, est calculé à partir des valeurs numériques de corrélation qui servent classiquement dans tout récepteur GPS à établir des signaux d'asservissement des boucles de phase et de porteuse. Application notamment à la détermination de cap d'un navire. Utilisable pour tout type de porteur: piéton, véhicule terrestre, bateau, avion.

Affiliated with

Also associated with

Rating

Receiver for determining a mobile object orientation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Receiver for determining a mobile object orientation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Receiver for determining a mobile object orientation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1508367