IQ baseband matching calibration technique
The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures...
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| creator | DARK STEPHEN L |
| description | The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples. The conductors are then reconfigured so they connect the first and second outputs of the generation system respectively to the second and first inputs of the digitization system. The controller then directs the generation system to generate a second calibration signal, and the digitizing system responsively captures a second set of vector samples. The controller or other processing agent computes gain and/or phase impairments using the first and second vector sample sets. Digital filter parameters may be computed based on the computed impairment(s), and used to correct the impairment(s) of the generation system and/or the digitizing system. |
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A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples. The conductors are then reconfigured so they connect the first and second outputs of the generation system respectively to the second and first inputs of the digitization system. The controller then directs the generation system to generate a second calibration signal, and the digitizing system responsively captures a second set of vector samples. The controller or other processing agent computes gain and/or phase impairments using the first and second vector sample sets. 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Digital filter parameters may be computed based on the computed impairment(s), and used to correct the impairment(s) of the generation system and/or the digitizing system.</description><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>SELECTING</subject><subject>TRANSMISSION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNDyDFRISixOTUrMS1HITSxJzsjMS1dITszJTCpKLMnMz1MoSU3OyMssLE3lYWBNS8wpTuWF0twMCm6uIc4euqkF-fGpxQWJyal5qSXxocEWFubGZoYGTkbGRCgBANWEKMg</recordid><startdate>20141028</startdate><enddate>20141028</enddate><creator>DARK STEPHEN L</creator><scope>EVB</scope></search><sort><creationdate>20141028</creationdate><title>IQ baseband matching calibration technique</title><author>DARK STEPHEN L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US8873610B23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2014</creationdate><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>SELECTING</topic><topic>TRANSMISSION</topic><toplevel>online_resources</toplevel><creatorcontrib>DARK STEPHEN L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DARK STEPHEN L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>IQ baseband matching calibration technique</title><date>2014-10-28</date><risdate>2014</risdate><abstract>The first and second outputs of a signal generation system are coupled to the first and second inputs of a signal digitizing system via respective electrical conductors. A controller directs the generation system to generate a first calibration signal, and the digitizing system responsively captures a first set of vector samples. The conductors are then reconfigured so they connect the first and second outputs of the generation system respectively to the second and first inputs of the digitization system. The controller then directs the generation system to generate a second calibration signal, and the digitizing system responsively captures a second set of vector samples. The controller or other processing agent computes gain and/or phase impairments using the first and second vector sample sets. Digital filter parameters may be computed based on the computed impairment(s), and used to correct the impairment(s) of the generation system and/or the digitizing system.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY SELECTING TRANSMISSION |
| title | IQ baseband matching calibration technique |
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