METHOD FOR ESTIMATING THE DIRECTION OF ARRIVAL OF AN ELECTROMAGNETIC WAVE AT AN ANTENNA ARRAY
The invention relates to a method for estimating the direction of arrival of an electromagnetic wave at an antenna array (2), comprising the steps of: - estimating (202) a covariance matrix of signals acquired by the antenna array (2); - calculating (204) a normalised eigenvector of the covariance m...
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| creator | GARCIA, Pierre-Antoine LILBERT, Arnaud CHIODINI, Alain Michel |
| description | The invention relates to a method for estimating the direction of arrival of an electromagnetic wave at an antenna array (2), comprising the steps of: - estimating (202) a covariance matrix of signals acquired by the antenna array (2); - calculating (204) a normalised eigenvector of the covariance matrix; - correlating (205) the normalised eigenvector with a first reference table and a second reference table so as to produce a first correlation spectrum and a second correlation spectrum comprising correlation indices associated, respectively, with different directions of arrival; - constructing (312) a third reference table by linear combination of the first reference table and the second reference table with a polarisation component of the electromagnetic wave in the first direction and the second direction, respectively; - correlating (314) the normalised eigenvector with the third reference table so as to produce a third correlation spectrum comprising correlation indices associated with different directions of arrival; - identifying (316) a direction of arrival associated with a maximum correlation index of the third correlation spectrum. |
| format | Patent |
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- calculating (204) a normalised eigenvector of the covariance matrix; - correlating (205) the normalised eigenvector with a first reference table and a second reference table so as to produce a first correlation spectrum and a second correlation spectrum comprising correlation indices associated, respectively, with different directions of arrival; - constructing (312) a third reference table by linear combination of the first reference table and the second reference table with a polarisation component of the electromagnetic wave in the first direction and the second direction, respectively; - correlating (314) the normalised eigenvector with the third reference table so as to produce a third correlation spectrum comprising correlation indices associated with different directions of arrival; - identifying (316) a direction of arrival associated with a maximum correlation index of the third correlation spectrum.</description><language>eng ; fre ; ger</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; 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- calculating (204) a normalised eigenvector of the covariance matrix; - correlating (205) the normalised eigenvector with a first reference table and a second reference table so as to produce a first correlation spectrum and a second correlation spectrum comprising correlation indices associated, respectively, with different directions of arrival; - constructing (312) a third reference table by linear combination of the first reference table and the second reference table with a polarisation component of the electromagnetic wave in the first direction and the second direction, respectively; - correlating (314) the normalised eigenvector with the third reference table so as to produce a third correlation spectrum comprising correlation indices associated with different directions of arrival; - identifying (316) a direction of arrival associated with a maximum correlation index of the third correlation spectrum.</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>ANTENNAS, i.e. RADIO AERIALS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>ELECTRICITY</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>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNi0EKwjAQRbNxIeod5gIuikFwOaSTZqCdSBwqXUgpEleihXp_tOIBXL0P77-luTSkIZbgYwI6KTeoLBVoICg5kVOOAtEDpsQt1t8pQPXHpNhgJaTs4IwtAeqsUJREcA6wW5vFbbhPefPjyoAndWGbx2efp3G45kd-9XS01h4Ku8di98flDU7OMcY</recordid><startdate>20241023</startdate><enddate>20241023</enddate><creator>GARCIA, Pierre-Antoine</creator><creator>LILBERT, Arnaud</creator><creator>CHIODINI, Alain Michel</creator><scope>EVB</scope></search><sort><creationdate>20241023</creationdate><title>METHOD FOR ESTIMATING THE DIRECTION OF ARRIVAL OF AN ELECTROMAGNETIC WAVE AT AN ANTENNA ARRAY</title><author>GARCIA, Pierre-Antoine ; LILBERT, Arnaud ; CHIODINI, Alain Michel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP4449146A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2024</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>ANTENNAS, i.e. RADIO AERIALS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>ELECTRICITY</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>GARCIA, Pierre-Antoine</creatorcontrib><creatorcontrib>LILBERT, Arnaud</creatorcontrib><creatorcontrib>CHIODINI, Alain Michel</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GARCIA, Pierre-Antoine</au><au>LILBERT, Arnaud</au><au>CHIODINI, Alain Michel</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR ESTIMATING THE DIRECTION OF ARRIVAL OF AN ELECTROMAGNETIC WAVE AT AN ANTENNA ARRAY</title><date>2024-10-23</date><risdate>2024</risdate><abstract>The invention relates to a method for estimating the direction of arrival of an electromagnetic wave at an antenna array (2), comprising the steps of: - estimating (202) a covariance matrix of signals acquired by the antenna array (2); - calculating (204) a normalised eigenvector of the covariance matrix; - correlating (205) the normalised eigenvector with a first reference table and a second reference table so as to produce a first correlation spectrum and a second correlation spectrum comprising correlation indices associated, respectively, with different directions of arrival; - constructing (312) a third reference table by linear combination of the first reference table and the second reference table with a polarisation component of the electromagnetic wave in the first direction and the second direction, respectively; - correlating (314) the normalised eigenvector with the third reference table so as to produce a third correlation spectrum comprising correlation indices associated with different directions of arrival; - identifying (316) a direction of arrival associated with a maximum correlation index of the third correlation spectrum.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | METHOD FOR ESTIMATING THE DIRECTION OF ARRIVAL OF AN ELECTROMAGNETIC WAVE AT AN ANTENNA ARRAY |
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