Accession Number : ADD017632
Title : Simultaneous Determination of Incoming Microwave Frequency and Angle-of-Arrival.
Descriptive Note : Patent, Filed 4 May 94, patented 4 Apr 95,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Vlannes, Nickolas P
Report Date : 04 May 1994
Pagination or Media Count : 24
Abstract : Incoming signals radiated to an array of antennas are processed within a signal surveillance system by adding signal outputs of two antennas at a common frequency. Separation of the added signal outputs according to frequency and comparison of power level measurement thereof provides signal phase difference data from which frequency and direction of the incoming signals are simultaneously determined.
Descriptors : *SIGNAL PROCESSING, *ANTENNA ARRAYS, *PATENTS, OUTPUT, POWER LEVELS, ANGLE OF ARRIVAL, SYNCHRONISM, ANTENNA RADIATION PATTERNS, SURVEILLANCE, DETERMINATION, MICROWAVE FREQUENCY, POWER MEASUREMENT, DIFFERENCE FREQUENCY
Subject Categories : Electricity and Magnetism
Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE