SYSTEM AND METHOD FOR ENHANCING NEAR VERTICAL INCIDENCE SKYWAVE (NVIS) COMMUNICATION USING SPACE-TIME CODING

摘要

A kind of system and method are described, wherein Space-time coding techniques allow multiple data flows in nearly vertical incidence sky wave (' NVIS ') communication system to emit and receive. It is communicated in NVIS, multiple independent data flows can be close to or up to 90 degree from the angle of radiation height of dispatching station. Data flow from earth ionospheric reflection and by one or more receiving stations. It in one embodiment, is the technology of multiple-input and multiple-output MIMO (' ') signal communication by Space-Time Codes.