172302 ⎘
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 using radio waves; Systems for determining direction or deviation from predetermined direction using a receiving antenna moving, or appearing to move, in a cyclic path to produce a Doppler variation of frequency of the received signal
Sub-classes:DETERMINING LOCATION INFORMATION USING CYCLOSPECTRAL DETECTION
#2Beam direction selection for a radio communications device
#3First communication device and methods thereby for initiating transmission based on an obtained set of correspondences
#4Determining a yaw direction of a wind turbine
#5Characterizing multipath delays in antenna array and synthetic aperture radar systems
#6Localization with non-synchronous emission and multipath transmission
#7Determining spatial orientation information of a body from multiple electromagnetic signals
#8Determining spatial orientation information of a body from multiple electromagnetic signals
#9MOBILE COMPUTING DEVICE HAVING RELATIVE POSITIONING CIRCUIT
#10Method and System for Analyzing Cable Television Signal Leak Information
#11System and method for locating items and places
#12RF bridge for an angle rate interferometer
#13Processor for a passive ranger
#14Reverse locator
#15Spin around direction and distance locator
#16System and method for determining attitude using spatial shift key (SSK) modulation signatures
#17Method and system for analyzing cable television signal leak information
#18Doppler-assisted sensor fusion