CN105553489B - Ofdm系统数字基带接收机进行直流消除的方法 - Google Patents
Ofdm系统数字基带接收机进行直流消除的方法 Download PDFInfo
- Publication number
- CN105553489B CN105553489B CN201510900594.6A CN201510900594A CN105553489B CN 105553489 B CN105553489 B CN 105553489B CN 201510900594 A CN201510900594 A CN 201510900594A CN 105553489 B CN105553489 B CN 105553489B
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- China
- Prior art keywords
- signal
- pass filter
- filtered
- way
- digital baseband
- Prior art date
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Classifications
-
- 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
-
- 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
- H04B1/1036—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal with automatic suppression of narrow band noise or interference, e.g. by using tuneable notch filters
-
- 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
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- 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
- H04L25/0202—Channel estimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
时延时间 | Filter 1 | Filter 2 |
0.8us | 14.80 | 67.97 |
1.6us | 3.28 | 52.58 |
2.4us | 0.84 | 40.82 |
3.2us | 0.78 | 31.44 |
4us | 0.80 | 24.4 |
4.8us | 0.74 | 18.5 |
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510900594.6A CN105553489B (zh) | 2015-12-09 | 2015-12-09 | Ofdm系统数字基带接收机进行直流消除的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510900594.6A CN105553489B (zh) | 2015-12-09 | 2015-12-09 | Ofdm系统数字基带接收机进行直流消除的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN105553489A CN105553489A (zh) | 2016-05-04 |
CN105553489B true CN105553489B (zh) | 2018-03-23 |
Family
ID=55832453
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201510900594.6A Expired - Fee Related CN105553489B (zh) | 2015-12-09 | 2015-12-09 | Ofdm系统数字基带接收机进行直流消除的方法 |
Country Status (1)
Country | Link |
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CN (1) | CN105553489B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107241289A (zh) * | 2017-07-20 | 2017-10-10 | 重庆物奇科技有限公司 | 一种低压电力线宽带载波通信方法 |
CN108199994B (zh) * | 2017-12-29 | 2021-04-20 | 深圳市极致汇仪科技有限公司 | 一种无线综测仪ofdm信号频偏估计方法及系统 |
CN108512795B (zh) * | 2018-03-19 | 2020-11-06 | 东南大学 | 一种基于低精度adc的ofdm接收机基带处理方法和系统 |
CN112769413B (zh) * | 2019-11-04 | 2024-02-09 | 炬芯科技股份有限公司 | 高通滤波器及其稳定方法以及adc录音系统 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10331818B3 (de) * | 2003-07-14 | 2005-03-10 | Infineon Technologies Ag | Verfahren zur Schätzung des DC-Offsets eines OFDM-Empfangssignals, Vorrichtung zur Durchführung des Verfahrens, Funkempfänger mit einer solchen Vorrichtung, sowie Verfahren zur Kompensation eines DC-Offsets eines OFDM-Empfangssignals, Vorrichtung zur Durchführung dieses Verfahrens und Funkempfänger mit einer solchen Vorrichtung |
JP4983365B2 (ja) * | 2006-05-16 | 2012-07-25 | ソニー株式会社 | 無線通信装置 |
CN101741782B (zh) * | 2009-11-24 | 2012-08-15 | 东南大学 | 双层多载波超宽带无线通信方法 |
CN101800845B (zh) * | 2010-01-06 | 2013-05-22 | 北京中科大洋科技发展股份有限公司 | 一种可调节的基于光滑曲线的频域滤波器设计方法 |
CN101841372B (zh) * | 2010-04-15 | 2013-01-23 | 武汉虹信通信技术有限责任公司 | Cdma数字光纤直放站实现连续载频设置的方法 |
CN101848028B (zh) * | 2010-05-17 | 2012-10-03 | 重庆大学 | 一种改善tdrss阵元信号群时延非一致性的自适应方法 |
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2015
- 2015-12-09 CN CN201510900594.6A patent/CN105553489B/zh not_active Expired - Fee Related
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CN105553489A (zh) | 2016-05-04 |
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Address after: Three, 215021 international science and Technology Park, 1355 Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu Province, 9A Applicant after: SUZHOU WEIFA SEMICONDUCTOR CO.,LTD. Address before: 215021, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, 3 9A1-1 Applicant before: SMARTCHIP MICROELECTRONIC SCIENCE & TECHNOLOGY (SUZHOU) CO.,LTD. |
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Address after: 215021 No. 1355 Jinjihu Avenue, Suzhou Industrial Park, Jiangsu Province, Phase III Science and Technology Plaza 9A, International Science and Technology Park Patentee after: Kweifa Semiconductor (Suzhou) Co.,Ltd. Address before: 215021 Science and Technology Plaza 9A, Phase III, International Science and Technology Park, 1355 Jinjihu Avenue, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU WEIFA SEMICONDUCTOR CO.,LTD. |
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CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20211209 |