Class 342/156 - Interferometer

Subclass of Class 342 - Communications: directive radio wave systems and devices (e.g., radar, radio navigation)
Definition: Subject matter including a receiving antenna system which
No. of patents: 84
Last issue date: 05/31/2011

Number	Title	Issue Date
4156240	System for providing angular deviation data for locating a transmitter Disclosed is a system for locating a transmitter arranged for transmitting frequency-modulated signals. The system supplies data about the angular deviation between the direction of the transmitter considered from a reference point and a reference axis pa...	05/22/1979
4150378	Height finding radar A height finding arrangement for a range/azimuth surveillance radar using a mechanically rotated planar antenna array. The received outputs from the array are combined with suitable weighting functions to give two sectorial pattern signals whose effective...	04/17/1979
3943514	Dual base line interferometer antenna A radar system for determining the position of a target using a radio frency source of opportunity. The system uses an interferometer antenna and cross-correlation techniques to measure the time delay in receiving a reflected signal from the target as co...	03/09/1976
3942177	Interferometer radar elevation angle measurement apparatus In the measurement of the phase difference (proportional to the elevation angle of a target) provided by the radar target signals that are received by each antenna of an antenna array, a comparison of the responses of the signal processing circuitry to th...	03/02/1976

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