System and method for enhancing near vertical incidence...

H - Electricity – 04 – L

Patent

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H04L 1/02 (2006.01)

Patent

CA 2539333

A system and method are described in which space-time coding techniques are used to transmit and receive multiple data streams within a near vertical incidence skywave ("NVIS") communication system. Within the NVIS communication system, multiple independent data streams may be transmitted from a transmitting station at a high radiation angle, approaching or reaching 90 degrees. The data streams are reflected off of the ionosphere of the earth and received by one or more receiving stations. In one embodiment, the space-time coding techniques are multiple-input multiple-output ("MIMO") signal communication techniques.

Cette invention concerne un système et un procédé selon lesquels des techniques de codage espace-temps sont utilisées pour envoyer et recevoir de multiples trains de données au sein d'un système de communications par ondes ionosphériques à incidence presque verticale (NVIS). Au sein de ce système de communications par NVIS, de multiples trains de données indépendants peuvent être envoyés depuis une station émettrice selon un angle rayonnement élevé proche de 90 degrés ou égal à 90 degrés. Les trains de données sont réfléchis par l'ionosphère de la terre et reçus par une ou plusieurs stations réceptrices. Dans un mode de réalisation, les techniques de codage espace-temps sont des techniques de communication de signaux à entrées et sorties multiples ("MIMO").

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