CA2844218C - Correction d'erreur des signaux i et q - Google Patents
Correction d'erreur des signaux i et q Download PDFInfo
- Publication number
- CA2844218C CA2844218C CA2844218A CA2844218A CA2844218C CA 2844218 C CA2844218 C CA 2844218C CA 2844218 A CA2844218 A CA 2844218A CA 2844218 A CA2844218 A CA 2844218A CA 2844218 C CA2844218 C CA 2844218C
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- gain
- phase shift
- shift correction
- correction values
- signals
- Prior art date
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- 238000012937 correction Methods 0.000 title claims abstract description 76
- 230000010363 phase shift Effects 0.000 claims abstract description 93
- 238000012360 testing method Methods 0.000 claims abstract description 53
- 238000004891 communication Methods 0.000 claims abstract description 11
- 239000011159 matrix material Substances 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 26
- 238000012545 processing Methods 0.000 description 9
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- 230000006870 function Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
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- 238000004590 computer program Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
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- 238000011156 evaluation Methods 0.000 description 2
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- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
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Landscapes
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Un récepteur radio comportant un premier et un deuxième mélangeurs qui mélangent un signal de communication reçu en vue de produire des signaux I et Q en quadrature, en mesurant une valeur de sortie des signaux I et Q. Le processeur programmé effectue l'évaluation de la symétrie dans les signaux I et Q en calculant un valeur test de symétrie; teste de manière itérative les valeurs de correction de gain et de changement de phase en appliquant les valeurs de gain et de changement de phase aux signaux I et Q en vue d'identifier une paire de valeurs de correction de gain et de changement de phase qui produit une valeur test de symétrie améliorée; la sélection de la paire de valeurs de correction de gain et de changement de phase et l'application de la paire sélectionnée de valeurs de correction de gain et de changement de phase aux signaux I et Q des premier et deuxième mélangeurs. Le résumé ne doit pas être considéré comme limitatif.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/832,432 | 2013-03-15 | ||
| EP13159316.2A EP2779563B1 (fr) | 2013-03-15 | 2013-03-15 | Correction d'erreur IQ |
| US13/832,432 US8811538B1 (en) | 2013-03-15 | 2013-03-15 | IQ error correction |
| EP13159316.2 | 2013-03-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2844218A1 CA2844218A1 (fr) | 2014-09-15 |
| CA2844218C true CA2844218C (fr) | 2015-12-29 |
Family
ID=51565139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2844218A Active CA2844218C (fr) | 2013-03-15 | 2014-02-27 | Correction d'erreur des signaux i et q |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2844218C (fr) |
-
2014
- 2014-02-27 CA CA2844218A patent/CA2844218C/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CA2844218A1 (fr) | 2014-09-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20140919 |
|
| EEER | Examination request |
Effective date: 20140919 |