Communications: directive radio wave systems and devices (e.g. – Directive – Beacon or receiver
Patent
1992-11-04
1994-05-24
Blum, Theodore M.
Communications: directive radio wave systems and devices (e.g.,
Directive
Beacon or receiver
G01S 504
Patent
active
053153081
ABSTRACT:
A method for determining a direction of arrival of an electromagnetic wave comprises the steps of: measuring sets of electric and magnetic components of an electromagnetic wave as sensed from a lumped antenna structure; finding a cross product for each measured set of electric and magnetic components so as to derive an orthogonal vector value therefrom; deriving the Castesian components for each direction vector value so determined; averaging like component vectors for each measured electric and magnetic vector component set over a plurality of measurements; and deriving a direction vector from the averaged vector values.
REFERENCES:
patent: 4054881 (1977-10-01), Raab
patent: 4613866 (1986-09-01), Blood
patent: 4737794 (1988-04-01), Jones
An Optically Linked Electric and Magnetic Field Sensor for Poynting Vector Measurements in the Near Fields of Radiating Sources-Lanny D. Driver.
Motohisa Kanda-IEEE Transactions on Electromatgnetic Compatibility-vol. 30, No. 4, Nov., 1988, pp. 495-506.
An Electromagnetic Near-Field Sensor for Simultaneous Electric and Magnetic-Field Measurements-Motohisa Kanda, Sr. Member IEEE-IEEE Transactions on Electro-Magnetic Compatibility, vol. EMC-26, No. 3, pp. 102-110-Aug., 1984.
A Three-Loop Method for Determining the Radiation Characteristics of an Electrically Small Source-IEEE Transactions on Electromagnetic Compatibility vol. 34, No. 1, pp. 1-3, Feb., 1992.
Vector Sensor Processing for Electromagnetic Source Localization A. Nehorai & E. Paldi, Prod. 25th Asilomar Conf. on Signals, Systems & Computers Pacific Grove, Calif. Nov. 4-6, 1991.
Nehorai Arye
Paldi Eytan
Blum Theodore M.
Yale University
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