using ultrasonic, sonic or infrasonic waves

Full Title

Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations > using ultrasonic, sonic or infrasonic waves

Child Classifications

Navigate with arrow keys, Enter to open

• G01S 5/183
• G01S 5/186
• G01S 5/20 Position of source determined by a plurality of spaced direction-finders
• G01S 5/22 Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements (G01S5/28 takes precedence)
• G01S 5/24 Position of single direction-finder fixed by determining direction of a plurality of spaced sources of known location
• G01S 5/26 Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements (G01S5/28 takes precedence)
• G01S 5/28 by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial
• G01S 5/30 Determining absolute distances from a plurality of spaced points of known location