Sector scan ADF system
Secure communication and ranging system
Secure encoder for trilateralization locator utilizing very narr
Secure hyperbolic guidance using noise signals and correlation d
Secure position identity and time reporting system
Secure remote control communication systems
Security device
Security device for garage doors
Security tag with three dimensional antenna array made from...
Segmented chirp waveform implemented radar system
Selective sampling method
Self adaptive correlation radar
Self calibration of a LORAN-C navigation receiver
Self calibration of a LORAN-C navigation receiver
Self erectable structure
Self synchronizing convolver system
Self-calibrating microwave transponder
Self-calibration of stacked beam radar
Self-contained progressive-phase GPS elements and antennas
Self-destroying location marking means