Accession Number : ADD016392

Title :   Simultaneous Determination of Incoming Microwave Frequency and Angle-of-Arrival.

Descriptive Note : Patent Application, filed 4 May 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Vlannes, Nickolas P

Report Date : 04 May 1994

Pagination or Media Count : 51

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 :   *ELECTROMAGNETIC RADIATION, *MICROWAVE FREQUENCY, *ANGLE OF ARRIVAL, *PATENT APPLICATIONS, *SIGNAL PROCESSING, ANTENNAS, COMPARISON, MEASUREMENT, OUTPUT, PHASE, POWER, POWER LEVELS, SEPARATION, SIGNALS, SURVEILLANCE, ANTENNA ARRAYS

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE