Data-Based Quadrature Imbalance Compensation for a CW Doppler Radar System
A method for quadrature imbalance compensation in direct-conversion quadrature Doppler radar systems, based on data obtained using a mechanical target and an ellipse fit method, is reported. The proposed method can be used with different architectures of Doppler radar and eliminates the need to modi...
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| Veröffentlicht in: | IEEE transactions on microwave theory and techniques 2013-04, Vol.61 (4), p.1718-1724 |
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| container_title | IEEE transactions on microwave theory and techniques |
| container_volume | 61 |
| creator | Singh, A. Xiaomeng Gao Yavari, E. Zakrzewski, M. Xi Hang Cao Lubecke, V. M. Boric-Lubecke, O. |
| description | A method for quadrature imbalance compensation in direct-conversion quadrature Doppler radar systems, based on data obtained using a mechanical target and an ellipse fit method, is reported. The proposed method can be used with different architectures of Doppler radar and eliminates the need to modify the radar in order to perform imbalance measurements. A mechanical target was used to provide sufficient motion to create a significant segment of an ellipse in the in-phase/quadrature trace to obtain correction factors with high accuracy. Parametric simulations were performed to analyze the accuracy of this technique in the presence of varying noise and target displacements. This method is compared with an existing phase-shifter-based imbalance computation technique for the measurement of known displacements and is shown to give consistent and more accurate results. Experimental data, consistent with simulations, demonstrates that accurate correction is obtained with 65% of the ellipse, resulting in a displacement error of less than 6%. |
| doi_str_mv | 10.1109/TMTT.2013.2249525 |
| format | Article |
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M. ; Boric-Lubecke, O.</creator><creatorcontrib>Singh, A. ; Xiaomeng Gao ; Yavari, E. ; Zakrzewski, M. ; Xi Hang Cao ; Lubecke, V. M. ; Boric-Lubecke, O.</creatorcontrib><description>A method for quadrature imbalance compensation in direct-conversion quadrature Doppler radar systems, based on data obtained using a mechanical target and an ellipse fit method, is reported. The proposed method can be used with different architectures of Doppler radar and eliminates the need to modify the radar in order to perform imbalance measurements. A mechanical target was used to provide sufficient motion to create a significant segment of an ellipse in the in-phase/quadrature trace to obtain correction factors with high accuracy. Parametric simulations were performed to analyze the accuracy of this technique in the presence of varying noise and target displacements. This method is compared with an existing phase-shifter-based imbalance computation technique for the measurement of known displacements and is shown to give consistent and more accurate results. Experimental data, consistent with simulations, demonstrates that accurate correction is obtained with 65% of the ellipse, resulting in a displacement error of less than 6%.</description><identifier>ISSN: 0018-9480</identifier><identifier>EISSN: 1557-9670</identifier><identifier>DOI: 10.1109/TMTT.2013.2249525</identifier><identifier>CODEN: IETMAB</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Accuracy ; Amplitude imbalance ; Applied sciences ; Baseband ; Circuit properties ; Circuits of signal characteristics conditioning (including delay circuits) ; Doppler radar ; Electric, optical and optoelectronic circuits ; Electronic circuits ; Electronics ; ellipse fit ; Exact sciences and technology ; phase imbalance ; Phase measurement ; Radiolocalization and radionavigation ; Signal convertors ; Signal to noise ratio ; Telecommunications ; Telecommunications and information theory</subject><ispartof>IEEE transactions on microwave theory and techniques, 2013-04, Vol.61 (4), p.1718-1724</ispartof><rights>2014 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-dd23a50e6dc90c355cb3627968989efe3e4e2922eff16a30dc64f1035a6f61d63</citedby><cites>FETCH-LOGICAL-c343t-dd23a50e6dc90c355cb3627968989efe3e4e2922eff16a30dc64f1035a6f61d63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6479350$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6479350$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27251864$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Singh, A.</creatorcontrib><creatorcontrib>Xiaomeng Gao</creatorcontrib><creatorcontrib>Yavari, E.</creatorcontrib><creatorcontrib>Zakrzewski, M.</creatorcontrib><creatorcontrib>Xi Hang Cao</creatorcontrib><creatorcontrib>Lubecke, V. M.</creatorcontrib><creatorcontrib>Boric-Lubecke, O.</creatorcontrib><title>Data-Based Quadrature Imbalance Compensation for a CW Doppler Radar System</title><title>IEEE transactions on microwave theory and techniques</title><addtitle>TMTT</addtitle><description>A method for quadrature imbalance compensation in direct-conversion quadrature Doppler radar systems, based on data obtained using a mechanical target and an ellipse fit method, is reported. The proposed method can be used with different architectures of Doppler radar and eliminates the need to modify the radar in order to perform imbalance measurements. A mechanical target was used to provide sufficient motion to create a significant segment of an ellipse in the in-phase/quadrature trace to obtain correction factors with high accuracy. Parametric simulations were performed to analyze the accuracy of this technique in the presence of varying noise and target displacements. This method is compared with an existing phase-shifter-based imbalance computation technique for the measurement of known displacements and is shown to give consistent and more accurate results. Experimental data, consistent with simulations, demonstrates that accurate correction is obtained with 65% of the ellipse, resulting in a displacement error of less than 6%.</description><subject>Accuracy</subject><subject>Amplitude imbalance</subject><subject>Applied sciences</subject><subject>Baseband</subject><subject>Circuit properties</subject><subject>Circuits of signal characteristics conditioning (including delay circuits)</subject><subject>Doppler radar</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronic circuits</subject><subject>Electronics</subject><subject>ellipse fit</subject><subject>Exact sciences and technology</subject><subject>phase imbalance</subject><subject>Phase measurement</subject><subject>Radiolocalization and radionavigation</subject><subject>Signal convertors</subject><subject>Signal to noise ratio</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><issn>0018-9480</issn><issn>1557-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1Lw0AQhhdRsFZ_gHjZi8fU_U72qK0flYqoEY9hujsLkaQJu-mh_96USk_Dy7zPwDyEXHM245zZu_KtLGeCcTkTQlkt9AmZcK3zzJqcnZIJY7zIrCrYOblI6XeMSrNiQl4XMED2AAk9_diCjzBsI9Jlu4YGNg7pvGt73CQY6m5DQxcp0PkPXXR932Ckn-Ah0q9dGrC9JGcBmoRX_3NKvp8ey_lLtnp_Xs7vV5mTSg6Z90KCZmi8s8xJrd1aGpFbU9jCYkCJCoUVAkPgBiTzzqjAmdRgguHeyCnhh7sudilFDFUf6xbiruKs2suo9jKqvYzqX8bI3B6YHpKDJsTxtzodQZELzQujxt7NoVcj4nFtVG6lZvIPN6Fngg</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Singh, A.</creator><creator>Xiaomeng Gao</creator><creator>Yavari, E.</creator><creator>Zakrzewski, M.</creator><creator>Xi Hang Cao</creator><creator>Lubecke, V. M.</creator><creator>Boric-Lubecke, O.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20130401</creationdate><title>Data-Based Quadrature Imbalance Compensation for a CW Doppler Radar System</title><author>Singh, A. ; Xiaomeng Gao ; Yavari, E. ; Zakrzewski, M. ; Xi Hang Cao ; Lubecke, V. M. ; Boric-Lubecke, O.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-dd23a50e6dc90c355cb3627968989efe3e4e2922eff16a30dc64f1035a6f61d63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Accuracy</topic><topic>Amplitude imbalance</topic><topic>Applied sciences</topic><topic>Baseband</topic><topic>Circuit properties</topic><topic>Circuits of signal characteristics conditioning (including delay circuits)</topic><topic>Doppler radar</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronic circuits</topic><topic>Electronics</topic><topic>ellipse fit</topic><topic>Exact sciences and technology</topic><topic>phase imbalance</topic><topic>Phase measurement</topic><topic>Radiolocalization and radionavigation</topic><topic>Signal convertors</topic><topic>Signal to noise ratio</topic><topic>Telecommunications</topic><topic>Telecommunications and information theory</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Singh, A.</creatorcontrib><creatorcontrib>Xiaomeng Gao</creatorcontrib><creatorcontrib>Yavari, E.</creatorcontrib><creatorcontrib>Zakrzewski, M.</creatorcontrib><creatorcontrib>Xi Hang Cao</creatorcontrib><creatorcontrib>Lubecke, V. M.</creatorcontrib><creatorcontrib>Boric-Lubecke, O.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>IEEE transactions on microwave theory and techniques</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Singh, A.</au><au>Xiaomeng Gao</au><au>Yavari, E.</au><au>Zakrzewski, M.</au><au>Xi Hang Cao</au><au>Lubecke, V. M.</au><au>Boric-Lubecke, O.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Data-Based Quadrature Imbalance Compensation for a CW Doppler Radar System</atitle><jtitle>IEEE transactions on microwave theory and techniques</jtitle><stitle>TMTT</stitle><date>2013-04-01</date><risdate>2013</risdate><volume>61</volume><issue>4</issue><spage>1718</spage><epage>1724</epage><pages>1718-1724</pages><issn>0018-9480</issn><eissn>1557-9670</eissn><coden>IETMAB</coden><abstract>A method for quadrature imbalance compensation in direct-conversion quadrature Doppler radar systems, based on data obtained using a mechanical target and an ellipse fit method, is reported. The proposed method can be used with different architectures of Doppler radar and eliminates the need to modify the radar in order to perform imbalance measurements. A mechanical target was used to provide sufficient motion to create a significant segment of an ellipse in the in-phase/quadrature trace to obtain correction factors with high accuracy. Parametric simulations were performed to analyze the accuracy of this technique in the presence of varying noise and target displacements. This method is compared with an existing phase-shifter-based imbalance computation technique for the measurement of known displacements and is shown to give consistent and more accurate results. Experimental data, consistent with simulations, demonstrates that accurate correction is obtained with 65% of the ellipse, resulting in a displacement error of less than 6%.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TMTT.2013.2249525</doi><tpages>7</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Accuracy Amplitude imbalance Applied sciences Baseband Circuit properties Circuits of signal characteristics conditioning (including delay circuits) Doppler radar Electric, optical and optoelectronic circuits Electronic circuits Electronics ellipse fit Exact sciences and technology phase imbalance Phase measurement Radiolocalization and radionavigation Signal convertors Signal to noise ratio Telecommunications Telecommunications and information theory |
| title | Data-Based Quadrature Imbalance Compensation for a CW Doppler Radar System |
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