Satellite-based vehicle position determining system Satellite communications system employing frequency reuse
Method and apparatus for determining the position of a vehicle Ranging and processing system for mobile surveillance and data linkĪlternating sequential half duplex communication system Monopulse phased array antenna with plural transmit-receive module phase shifters Vehicle location system accuracy enhancement for airborne vehiclesĭigital beam-forming technique using temporary noise injection Satellite-based position determining system Repeater diversity spread spectrum communication systemĪpparatus for electronically controlling the radiation pattern of an antenna having one or more beams of variable width and/or directionĭual satellite navigation system and method Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites Radio telecommunications system and method with adaptive location determination convergence Radio frequency broadcasting systems and methods using two low-cost geosynchronous satellites and hemispherical coverage antennas Multiple access coding using bent sequences for mobile radio communicationsĭoppler detection system for determining initial position of a maneuvering target System for increasing the utility of satellite communication systemsĬellular/satellite communications system with improved frequency re-use Mobile radio receivers using time diversity to avoid service outages in multichannel broadcast transmission systems Method and apparatus for approximating propagation delay for use in transmission compensation to orbiting satellitesĪdaptive beam pointing method and apparatus for a communication systemĪ cellular/satellite communications system with generation of a plurality of sets of intersecting antenna beams Location and generation of high accuracy survey control marks using satellites Network and method for controlling steerable beamsĭirect digital synthesizer driven phased array antenna Method and intelligent digital beam forming system with improved signal quality communications
#Simulcatst multipatch code
Ground based beam forming utilizing synchronized code division multiplexingĭigital radio satellite and terrestrial ubiquitous broadcasting system using spread spectrum modulation Method and system for digital beam formingĮfficient apparatus for simultaneous modulation and digital beamforming for an antenna array
Method and receiver using a low earth orbiting satellite signal to augment the global positioning systemĪmbiguity resolution for ambiguous position solutions using satellite beams Method and apparatus for location finding in a communication system
Ground device for communicating with an elevated communication hub and method of operation thereof Method and system for determining a position of a target vehicle utilizing two-way ranging Low-height, low-cost, high-gain antenna and system for mobile platforms Satellite for increasing the utility of satellite communication systems
#Simulcatst multipatch portable
System for providing global portable internet access using low earth orbit satellite and satellite direct radio broadcast system Rotating electronically steerable antenna system and method of operation thereof Method and apparatus for reducing signal blocking in a satellite communication system Satellite beam pattern for non-uniform population distributionĮlevated communication hub and method of operation therefor
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