Reply detection in a secondary surveillance radar
The present invention relates to a detecting device (10; 20; 20') for detecting an SSR signal having a characteristic structure. The detecting device (10; 20, 20') comprises filtering means (11; 21) matched to the characteristic structure of the SSR signal, and means for maintaining a fals...
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| creator | FIORI FABRIZIO GALATI GASPARE GELLI STEFANO PIRACCI EMILIO GIUSEPPE |
| description | The present invention relates to a detecting device (10; 20; 20') for detecting an SSR signal having a characteristic structure. The detecting device (10; 20, 20') comprises filtering means (11; 21) matched to the characteristic structure of the SSR signal, and means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22'). The characteristic structure of the SSR signal comprises either a preamble or an initial pulse and a final pulse separated by a fixed dwell time. The means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22') comprisecomputing means configured to compute a detection threshold on the basis of a signal supplied by the filtering means (11; 21), and decision means configured to detect the SSR signal on the basis of the detection threshold and of the signal supplied by the filtering means (11; 21). |
| format | Patent |
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The detecting device (10; 20, 20') comprises filtering means (11; 21) matched to the characteristic structure of the SSR signal, and means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22'). The characteristic structure of the SSR signal comprises either a preamble or an initial pulse and a final pulse separated by a fixed dwell time. The means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22') comprisecomputing means configured to compute a detection threshold on the basis of a signal supplied by the filtering means (11; 21), and decision means configured to detect the SSR signal on the basis of the detection threshold and of the signal supplied by the filtering means (11; 21).</description><language>chi ; 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>2010</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=20101117&DB=EPODOC&CC=CN&NR=101889215A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20101117&DB=EPODOC&CC=CN&NR=101889215A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>FIORI FABRIZIO</creatorcontrib><creatorcontrib>GALATI GASPARE</creatorcontrib><creatorcontrib>GELLI STEFANO</creatorcontrib><creatorcontrib>PIRACCI EMILIO GIUSEPPE</creatorcontrib><title>Reply detection in a secondary surveillance radar</title><description>The present invention relates to a detecting device (10; 20; 20') for detecting an SSR signal having a characteristic structure. The detecting device (10; 20, 20') comprises filtering means (11; 21) matched to the characteristic structure of the SSR signal, and means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22'). The characteristic structure of the SSR signal comprises either a preamble or an initial pulse and a final pulse separated by a fixed dwell time. The means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22') comprisecomputing means configured to compute a detection threshold on the basis of a signal supplied by the filtering means (11; 21), and decision means configured to detect the SSR signal on the basis of the detection threshold and of the signal supplied by the filtering means (11; 21).</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>2010</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAMSi3IqVRISS1JTS7JzM9TyMxTSFQoTk3Oz0tJLKpUKC4tKkvNzMlJzEtOVShKBIrxMLCmJeYUp_JCaW4GRTfXEGcP3dSC_PjU4oLE5NS81JJ4Zz9DA0MLC0sjQ1NHY2LUAACZCyvA</recordid><startdate>20101117</startdate><enddate>20101117</enddate><creator>FIORI FABRIZIO</creator><creator>GALATI GASPARE</creator><creator>GELLI STEFANO</creator><creator>PIRACCI EMILIO GIUSEPPE</creator><scope>EVB</scope></search><sort><creationdate>20101117</creationdate><title>Reply detection in a secondary surveillance radar</title><author>FIORI FABRIZIO ; GALATI GASPARE ; GELLI STEFANO ; PIRACCI EMILIO GIUSEPPE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN101889215A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2010</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</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>FIORI FABRIZIO</creatorcontrib><creatorcontrib>GALATI GASPARE</creatorcontrib><creatorcontrib>GELLI STEFANO</creatorcontrib><creatorcontrib>PIRACCI EMILIO GIUSEPPE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>FIORI FABRIZIO</au><au>GALATI GASPARE</au><au>GELLI STEFANO</au><au>PIRACCI EMILIO GIUSEPPE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Reply detection in a secondary surveillance radar</title><date>2010-11-17</date><risdate>2010</risdate><abstract>The present invention relates to a detecting device (10; 20; 20') for detecting an SSR signal having a characteristic structure. The detecting device (10; 20, 20') comprises filtering means (11; 21) matched to the characteristic structure of the SSR signal, and means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22'). The characteristic structure of the SSR signal comprises either a preamble or an initial pulse and a final pulse separated by a fixed dwell time. The means for maintaining a false-alarm rate at a substantially constant value (12; 22; 22') comprisecomputing means configured to compute a detection threshold on the basis of a signal supplied by the filtering means (11; 21), and decision means configured to detect the SSR signal on the basis of the detection threshold and of the signal supplied by the filtering means (11; 21).</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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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 | Reply detection in a secondary surveillance radar |
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