System and method for enhancing near vertical incidence skywave (“NVIS”) communication using space-time coding
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United States of America Patent
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Feb 8, 2011
Grant Date -
Oct 6, 2005
app pub date -
Apr 2, 2004
filing date -
Apr 2, 2004
priority date (Note) -
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Abstract
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.
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