DE2810799

1536996 Radio direction-finders PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 March 1977 12628/77 HÚading H4D In a radio source direction-finder, a circular array of N equally spaced omnidirectional aerial elements in a horizontal plane affords a plurality of interferometric pairs (either be...

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Hauptverfasser:	LUCAS, DAVID ADRIAN, SALFORDS, REDHILL, SURREY (VER. KOENIGREICH), VINCENT, RICHARD PAUL
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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creator	LUCAS, DAVID ADRIAN SALFORDS, REDHILL, SURREY (VER. KOENIGREICH) VINCENT, RICHARD PAUL
description	1536996 Radio direction-finders PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 March 1977 12628/77 HÚading H4D In a radio source direction-finder, a circular array of N equally spaced omnidirectional aerial elements in a horizontal plane affords a plurality of interferometric pairs (either between a common element C and each of the other elements 1 ... N, or between adjacent pairs of elements, or between pairs of elements spaced from each other by other elements), a series of phase discriminators U each associated with a respective pair of elements yield a phase-difference measurement in digital form, and digital logic means XPL derives a point of zero phase around the circular array from which the bearing of the radio source is obtained. There is inherent immunity to reflection errors because of the rotational symmetry of the circular array. The method involves the derivation of sinusoidal phase graphs (see particularly Figs. 2, 3, 8 and 9 (not shown)).
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The method involves the derivation of sinusoidal phase graphs (see particularly Figs. 2, 3, 8 and 9 (not shown)).</description><edition>3</edition><language>eng</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; MEASURING ; PHYSICS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING</subject><creationdate>1980</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19800508&DB=EPODOC&CC=DE&NR=2810799B2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76418</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19800508&DB=EPODOC&CC=DE&NR=2810799B2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LUCAS, DAVID ADRIAN</creatorcontrib><creatorcontrib>SALFORDS, REDHILL, SURREY (VER. 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The method involves the derivation of sinusoidal phase graphs (see particularly Figs. 2, 3, 8 and 9 (not shown)).</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1980</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZOB0cTWyMDQwt7TkYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxcPVORsZEKAEA0QsaiQ</recordid><startdate>19800508</startdate><enddate>19800508</enddate><creator>LUCAS, DAVID ADRIAN</creator><creator>SALFORDS, REDHILL, SURREY (VER. 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N, or between adjacent pairs of elements, or between pairs of elements spaced from each other by other elements), a series of phase discriminators U each associated with a respective pair of elements yield a phase-difference measurement in digital form, and digital logic means XPL derives a point of zero phase around the circular array from which the bearing of the radio source is obtained. There is inherent immunity to reflection errors because of the rotational symmetry of the circular array. The method involves the derivation of sinusoidal phase graphs (see particularly Figs. 2, 3, 8 and 9 (not shown)).</abstract><edition>3</edition><oa>free_for_read</oa></addata></record>
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subjects	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
title	DE2810799
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