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
Spatial power combiner using subharmonic beam position control
Speed trap information system
Spent hunting arrow locating means
Spinning focal plane array camera particularly suited for real t
Split C/A code receiver
Split-phase technique for eliminating pattern nulls from a discr
Spoofer detection power management for GPS receivers
Spoofing detection system for a satellite positioning system
Spot beam antenna boresight calibration using GPS receivers
Spread spectrum position determination, ranging and communicatio
Spreading codes for a satellite navigation system