CN104601259B - 具有同相正交信号失衡估测及校正技术的无线通*** - Google Patents
具有同相正交信号失衡估测及校正技术的无线通*** Download PDFInfo
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- CN104601259B CN104601259B CN201410610186.2A CN201410610186A CN104601259B CN 104601259 B CN104601259 B CN 104601259B CN 201410610186 A CN201410610186 A CN 201410610186A CN 104601259 B CN104601259 B CN 104601259B
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- inphase quadrature
- imbalance
- wireless communication
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- 238000012937 correction Methods 0.000 title claims abstract description 70
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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
- H04L27/38—Demodulator circuits; Receiver circuits
- H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
- H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
- H04L27/3863—Compensation for quadrature error in the received signal
-
- 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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
- H04B1/0028—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage
- H04B1/0032—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain wherein the AD/DA conversion occurs at baseband stage with analogue quadrature frequency conversion to and from the baseband
-
- 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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
Claims (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/068,032 US9264281B2 (en) | 2013-10-31 | 2013-10-31 | Wireless communication receiver with I/Q imbalance estimation and correction techniques |
US14/068,032 | 2013-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN104601259A CN104601259A (zh) | 2015-05-06 |
CN104601259B true CN104601259B (zh) | 2017-04-12 |
Family
ID=52995452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410610186.2A Expired - Fee Related CN104601259B (zh) | 2013-10-31 | 2014-10-31 | 具有同相正交信号失衡估测及校正技术的无线通*** |
Country Status (3)
Country | Link |
---|---|
US (1) | US9264281B2 (zh) |
CN (1) | CN104601259B (zh) |
TW (1) | TWI524706B (zh) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2537800B (en) * | 2014-12-22 | 2018-05-30 | Imagination Tech Ltd | IQ imbalance estimator |
EP3068044A1 (en) * | 2015-03-11 | 2016-09-14 | Nxp B.V. | Module for a radio receiver |
TWI565271B (zh) * | 2015-06-26 | 2017-01-01 | 晨星半導體股份有限公司 | 可修正信雜特徵值估計的接收電路與相關方法 |
EP3267646B1 (en) * | 2016-07-06 | 2021-06-02 | Nxp B.V. | Iq mismatch correction module |
CN107786236B (zh) * | 2016-08-25 | 2020-01-21 | 瑞昱半导体股份有限公司 | 传收电路以及接收电路控制方法 |
CN107834998B (zh) * | 2017-11-01 | 2018-09-18 | 西安科技大学 | 一种宽频带正交信号产生装置 |
CN110868227B (zh) * | 2018-08-28 | 2022-02-25 | 瑞昱半导体股份有限公司 | 可量测传送端镜像抑制比的传送电路 |
US11070416B2 (en) * | 2019-09-25 | 2021-07-20 | Apple Inc. | Time domain approach to determining a modulation or demodulation imbalance |
US11012273B1 (en) * | 2019-12-31 | 2021-05-18 | Hughes Network Systems, Llc | Compensating for frequency-dependent I-Q phase imbalance |
CN113542184B (zh) * | 2021-07-06 | 2023-09-05 | 上海擎昆信息科技有限公司 | 一种收发机iq不平衡校准方法及*** |
TWI765772B (zh) * | 2021-07-09 | 2022-05-21 | 晶豪科技股份有限公司 | 等化輸入訊號來產生等化器輸出訊號的方法以及參數等化器 |
US11711102B2 (en) * | 2021-11-01 | 2023-07-25 | Motorola Solutions, Inc. | Local oscillator switching control for a very low intermediate frequency receiver |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102843321A (zh) * | 2011-06-24 | 2012-12-26 | 联发科技股份有限公司 | Iq不平衡补偿装置及方法 |
US8526518B2 (en) * | 2007-12-18 | 2013-09-03 | Skyworks Solutions, Inc. | Imbalance compensation for direct conversion communication systems |
CN103312341A (zh) * | 2012-03-14 | 2013-09-18 | 晨星软件研发(深圳)有限公司 | 收发器的同相与正交校正***与方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8374297B2 (en) * | 2008-09-15 | 2013-02-12 | Intel Corporation | Circuit, controller and methods for dynamic estimation and cancellation of phase and gain imbalances in quadrature signal paths of a receiver |
US8477889B2 (en) * | 2009-03-11 | 2013-07-02 | Texas Instruments Incorporated | Estimating and filtering multiple sets of MIPS from different frequencies |
US8442150B1 (en) * | 2012-02-24 | 2013-05-14 | National Instruments Corporation | Measurement of transmitter impairments using offset local oscillators |
-
2013
- 2013-10-31 US US14/068,032 patent/US9264281B2/en active Active - Reinstated
-
2014
- 2014-10-31 CN CN201410610186.2A patent/CN104601259B/zh not_active Expired - Fee Related
- 2014-10-31 TW TW103137785A patent/TWI524706B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8526518B2 (en) * | 2007-12-18 | 2013-09-03 | Skyworks Solutions, Inc. | Imbalance compensation for direct conversion communication systems |
CN102843321A (zh) * | 2011-06-24 | 2012-12-26 | 联发科技股份有限公司 | Iq不平衡补偿装置及方法 |
CN103312341A (zh) * | 2012-03-14 | 2013-09-18 | 晨星软件研发(深圳)有限公司 | 收发器的同相与正交校正***与方法 |
Also Published As
Publication number | Publication date |
---|---|
US9264281B2 (en) | 2016-02-16 |
TW201517571A (zh) | 2015-05-01 |
CN104601259A (zh) | 2015-05-06 |
US20150117577A1 (en) | 2015-04-30 |
TWI524706B (zh) | 2016-03-01 |
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Effective date of registration: 20200416 Address after: No.1, Duhang 1st Road, Hsinchu City, Hsinchu Science Park, Taiwan, China Patentee after: MEDIATEK Inc. Address before: Taiwan Hsinchu County Tai Yuan Street China jhubei City, No. 26 4 floor 1 Patentee before: MSTAR SEMICONDUCTOR Inc. |
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Effective date of registration: 20220524 Address after: Ontario, Canada Patentee after: Xueshan Technology Co.,Ltd. Address before: No.1, Duhang 1st Road, Hsinchu City, Hsinchu Science Park, Taiwan, China Patentee before: MEDIATEK Inc. |
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