CN104052699A - 射频混频器的dc偏移估计 - Google Patents
射频混频器的dc偏移估计 Download PDFInfo
- Publication number
- CN104052699A CN104052699A CN201410094170.0A CN201410094170A CN104052699A CN 104052699 A CN104052699 A CN 104052699A CN 201410094170 A CN201410094170 A CN 201410094170A CN 104052699 A CN104052699 A CN 104052699A
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- China
- Prior art keywords
- signal
- value
- sample
- estimation
- offset
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/362—Modulation using more than one carrier, e.g. with quadrature carriers, separately amplitude modulated
- H04L27/364—Arrangements for overcoming imperfections in the modulator, e.g. quadrature error or unbalanced I and Q levels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0475—Circuits with means for limiting noise, interference or distortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
- H04L27/36—Modulator circuits; Transmitter circuits
- H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
- H03D2200/0041—Functional aspects of demodulators
- H03D2200/0043—Bias and operating point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
- H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
- Transceivers (AREA)
- Transmitters (AREA)
Abstract
Description
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/828,989 US20140269985A1 (en) | 2013-03-14 | 2013-03-14 | Dc bias estimation of a radio frequency mixer |
US13/828,989 | 2013-03-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104052699A true CN104052699A (zh) | 2014-09-17 |
CN104052699B CN104052699B (zh) | 2017-12-05 |
Family
ID=50343582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410094170.0A Active CN104052699B (zh) | 2013-03-14 | 2014-03-14 | 射频混频器的dc偏移估计 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140269985A1 (zh) |
EP (1) | EP2779553B1 (zh) |
CN (1) | CN104052699B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9961632B2 (en) * | 2014-09-26 | 2018-05-01 | Apple Inc. | DSP assisted and on demand RF and analog domain processing for low power wireless transceivers |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6801581B1 (en) * | 2000-09-13 | 2004-10-05 | Intel Corporation | DC offset cancellation |
CN101075814A (zh) * | 2007-05-10 | 2007-11-21 | 京信通信系统(中国)有限公司 | 基于特殊数字中频结构的数字接收机系统 |
CN101119357A (zh) * | 2006-09-07 | 2008-02-06 | 威盛电子股份有限公司 | 传送器以及传送器误差补偿方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9521769D0 (en) * | 1995-10-24 | 1996-01-03 | Philips Electronics Nv | Transmitter |
FI107212B (fi) * | 1999-03-26 | 2001-06-15 | Nokia Networks Oy | I/Q-modulaattorin tasajännitesiirtymän korjaus |
US7382833B1 (en) * | 2001-08-16 | 2008-06-03 | Rockwell Collins, Inc. | System for phase, gain, and DC offset error correction for a quadrature modulator |
US7035589B1 (en) * | 2001-09-24 | 2006-04-25 | Atheros Communications, Inc. | Method and system for tracking and mitigating DC offset in the presence of carrier frequency offsets |
US7715836B2 (en) * | 2002-09-03 | 2010-05-11 | Broadcom Corporation | Direct-conversion transceiver enabling digital calibration |
US7197091B1 (en) * | 2003-05-06 | 2007-03-27 | Ami Semiconductor, Inc. | Direct conversion receiver with direct current offset correction circuitry |
US7450923B2 (en) * | 2004-04-30 | 2008-11-11 | Texas Instruments Incorporated | Method and system for controlling carrier leakage in a direct conversion wireless device |
WO2006035509A1 (en) * | 2004-09-29 | 2006-04-06 | Nec Corporation | Error calculation circuit for mixer |
US7496341B2 (en) * | 2005-03-24 | 2009-02-24 | Integrated System Solution Corp. | Device and method for providing DC-offset estimation |
US8295371B2 (en) * | 2006-07-14 | 2012-10-23 | Qualcomm Incorporated | Multi-carrier receiver for wireless communication |
US8090332B2 (en) * | 2007-12-12 | 2012-01-03 | Qualcomm, Incorporated | Tracking filter for a receiver |
US8213555B2 (en) * | 2008-03-05 | 2012-07-03 | Texas Instruments Incorporated | Methods and apparatus to improve distortion performance and direct current (DC) offset cancellation in receivers |
US8913694B2 (en) * | 2012-12-05 | 2014-12-16 | Mstar Semiconductor, Inc. | Fast LO leakage calibration of direct up-conversion transmitters using three measurements |
-
2013
- 2013-03-14 US US13/828,989 patent/US20140269985A1/en not_active Abandoned
-
2014
- 2014-03-06 EP EP14158207.2A patent/EP2779553B1/en active Active
- 2014-03-14 CN CN201410094170.0A patent/CN104052699B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6801581B1 (en) * | 2000-09-13 | 2004-10-05 | Intel Corporation | DC offset cancellation |
CN101119357A (zh) * | 2006-09-07 | 2008-02-06 | 威盛电子股份有限公司 | 传送器以及传送器误差补偿方法 |
CN101075814A (zh) * | 2007-05-10 | 2007-11-21 | 京信通信系统(中国)有限公司 | 基于特殊数字中频结构的数字接收机系统 |
Also Published As
Publication number | Publication date |
---|---|
EP2779553A3 (en) | 2014-12-10 |
EP2779553B1 (en) | 2018-05-02 |
CN104052699B (zh) | 2017-12-05 |
US20140269985A1 (en) | 2014-09-18 |
EP2779553A2 (en) | 2014-09-17 |
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Effective date of registration: 20150106 Address after: Bermuda (UK) Hamilton Applicant after: ANALOG DEVICES GLOBAL Address before: Bermuda (UK) Hamilton Applicant before: Analog Devices Global |
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CP01 | Change in the name or title of a patent holder | ||
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Effective date of registration: 20220105 Address after: Limerick Patentee after: ANALOG DEVICES INTERNATIONAL UNLIMITED Co. Address before: Bermuda (UK), Hamilton Patentee before: Analog Devices Global Unlimited Co. |
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