Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified

Introduced: January 1980

Last revised: January 2006

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

using DOPPLER in radar systemsusing DOPPLER in traffic control systemsRADARTRACKING by radar or analogous techniques

6 direct subcodes

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G01S 13/02 Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
G01S 13/66 Radar-tracking systems; Analogous systems
G01S 13/74 Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
G01S 13/86 Combinations of radar systems with non-radar systems, e.g. sonar, direction finder
G01S 13/87 Combinations of radar systems, e.g. primary radar and secondary radar
G01S 13/88 Radar or analogous systems, specially adapted for specific applications