Software defined navigation signal generator
Software GPS based integrated navigation
Software-compensated crystal oscillator
Solar powered GPS device
Solid state transmitter circuit
Source identification system for closely separated spatial sourc
Space fed phased array antenna with dual phase shifter
Space tapered antenna having compressed spacing or feed...
Space-based lever arm correction in navigational systems...
Space-based tethered phased-array antenna
Spaceborne global positioning system for spacecraft
Spacecraft antenna pattern control system
Spacecraft antenna pointing error correction
Spacecraft communication channel power control system
Spacecraft disciplined reference oscillator
Spacecraft payload architecture
Spacecraft velocity measurement system
Spatial filtering system
Spatial interferometry multiplexing in wireless communications
Spatial position mapping technique