Sangam: A Confluence of Knowledge Streams

Theory and performance of a matched-filter doppler direction-finding system

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dc.creator Myers, Glen A.
dc.creator Orejuela, Henry
dc.date 2013-01-23T21:57:26Z
dc.date 2013-01-23T21:57:26Z
dc.date 1970-09
dc.date.accessioned 2022-05-19T07:38:37Z
dc.date.available 2022-05-19T07:38:37Z
dc.identifier http://hdl.handle.net/10945/26299
dc.identifier NPS-52MV70091A
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/100101
dc.description A new radio direction-finding (DF) technique which applies matched-filter theory to the DF problem is presented. The new technique, called Matched-Filter Doppler Direction Finding (MFD DF) is based on the doppler DF principle in which a rotating antenna, or its equivalent, superimposes periodic frequency modulation on the received carrier. The phase of the induced modulation contains information on the angle of arrival. It is shown that a bandpass filtering operation, which satisfies the phase-matching requirement of a matched filter, converts the frequency-modulated signal to an amplitude-modulated signal whose envelope is a periodic narrow pulse with no sidelobes. The relative time of occurrence of the pulse is a measure of angle of arrival. Included is the description of and results obtained with an experimental system used to confirm the analytical results, to study the effects of noise, and to explore alternatives available in the design of an operating system. Encouraging results were obtained using this same experimental system with a conventional operating doppler DF set. (Author)
dc.description This task was supported by: Naval Ship Systems Command (Code 6050)
dc.description http://archive.org/details/theoryperformanc00orej
dc.format application/pdf
dc.language en_US
dc.publisher Monterey, California. Naval Postgraduate School
dc.rights This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
dc.subject WEATHER FORECASTING.
dc.title Theory and performance of a matched-filter doppler direction-finding system
dc.type Technical Report


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