IPC Subgroup
G01S 11/02 using radio waves
Introduced: January 1990
Last revised: January 2010
Full Title
Systems for determining distance or velocity not using reflection or reradiation > using radio waves
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
4 direct subcodes
Child Classifications
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- G01S 11/04 using angle measurements
- G01S 11/06 using intensity measurements
- G01S 11/08 using synchronised clocks
- G01S 11/1 using Doppler effect