Using multiple antennas to mitigate specular reflection

Details Using multiple antennas to mitigate specular reflection Using multiple antennas to mitigate specular reflection

H - Electricity

04

B

H04B 7/08 (2006.01)

Patent

CA 2303540

Apparatus and method for using multiple receive antennas (420A, 420B) in a satellite communication system (100) receiver (500, 700, 900) to mitigate the effects of specular reflection (202B, 402B) of a received signal (202A, 402A). The system includes first and second antennas (420A, 420B), for receiving a satellite communication signal along first and second direct (202A, 402A) and specular propagation paths (202B, 402B), respectively, and a digital maximal ration combiner (520) for combining the signals (202A, 202B, 402A, 402B, 420A, 420B) so as to maximize the signal-to-noise of the resultant combined signal.

On décrit un appareil et un procédé permettant d'utiliser plusieurs antennes réceptrices (420A, 420B) dans un récepteur (500, 600) d'un système (100) de communication par satellite pour atténuer les effets de la réflexion spéculaire (202B, 402B) d'un signal reçu (202A, 402A). Le système comprend des première et deuxième antennes (420A, 420B) destinées à recevoir un signal de communication par satellite le long de première et deuxième voies de propagation directe (202A, 402A) et de voies de propagation spéculaire (202B, 402B) respectivement et un combineur (520) de rapport maximal numérique qui combine les signaux reçus par les première et deuxième antennes (202A, 202B, 402A, 402B) de manière à augmenter au maximum le rapport signal-sur-bruit du signal combiné résultant.

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