G01S - 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

More topics under "G01S - 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" (209,422)
G01S 1 - Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith (15,825)
G01S 11 - Systems for determining distance or velocity not using reflection or reradiation (4,179)
G01S 13 - 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 (37,701)
G01S 15 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems (17,242)
G01S 17 - Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems (17,638)
G01S 19 - Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems (34,425)
G01S 3 - Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received (11,105)
G01S 5 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations (29,969)
G01S 7 - Details of systems according to groups , , (41,338)

Patents for G01S - 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 (432)
12/1988
12/27/1988	US4794343 Method and apparatus for calibrating and equalizing a multi-channel automatic gain control amplifier
07/1988
07/28/1988	WO1988005547A1 Processing parameter generator for synthetic aperture radar
01/1988
01/13/1988	EP0252089A1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier.
10/1987
10/22/1987	WO1987006353A1 Method for the three-dimensional surveillance of the object space
09/1987
09/30/1987	EP0238615A1 Method of navigating an automated guided vehicle.
08/1987
08/25/1987	CA1226057A1 Imaging doppler interferometer
08/18/1987	US4688044 Multiple range interval clutter cancellation circuit
07/1987
07/09/1987	EP0215940A4 Imaging doppler interferometer.
06/1987
06/18/1987	WO1987003754A1 A method of calibrating and equalizing a multi-chanel automatic gain control amplifier
06/18/1987	WO1987003698A1 A method and apparatus for measuring distances
06/18/1987	WO1987003697A1 A method for measuring the distance and/or the relative velocity between two objects
05/1987
05/06/1987	EP0220360A2 Expander system for pulse signals
04/1987
04/01/1987	EP0215940A1 Imaging doppler interferometer.
03/1987
03/26/1987	WO1987001814A1 Method of navigating an automated guided vehicle
02/1987
02/17/1987	CA1218134A1 Navigation system
12/1986
12/16/1986	US4630051 Process for providing locational information of a target
12/09/1986	US4628319 Navigation system
11/1986
11/12/1986	CN86102127A Imaging doppler interferometer
10/1986
10/28/1986	CA1213341A1 Direction-finding system
09/1986
09/12/1986	WO1986005279A1 Imaging doppler interferometer
08/1986
08/06/1986	EP0093753B1 Navigation system
12/1985
12/17/1985	CA1198207A2 Ultrasonic method and apparatus for imaging and characterization of bodies using amplitude and polarity detection
06/1985
06/04/1985	US4520670 Method and apparatus for generating short ultrasonic echo pulses
04/1985
04/11/1985	WO1985001583A1 A method and a transponder for measuring a distance and identification
02/1985
02/12/1985	CA1182550A1 Ultrasonic method and apparatus for imaging and characterization of bodies using amplitude and polarity detection
12/1983
12/28/1983	EP0096690A1 Method and apparatus for generating short ultrasonic echo pulses
11/1983
11/16/1983	EP0093753A1 Navigation system.
11/01/1983	US4412544 Ultrasonic method and apparatus for imaging and characterization of bodies using amplitude and polarity detection
07/1983
07/07/1983	WO1983002330A1 Method and apparatus for generating short ultrasonic echo pulses
05/1983
05/26/1983	WO1983001838A1 Navigation system
09/1980
09/23/1980	US4224619 Symbology writing apparatus for radar plan position indicator displays
08/1980
08/07/1980	WO1980001612A1 Symbology writing apparatus for radar plan position indicator displays

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