CN101795255B - 一种基于导频的ofdm系统载波频偏估计方法及系统 - Google Patents
一种基于导频的ofdm系统载波频偏估计方法及系统 Download PDFInfo
- Publication number
- CN101795255B CN101795255B CN200910242504A CN200910242504A CN101795255B CN 101795255 B CN101795255 B CN 101795255B CN 200910242504 A CN200910242504 A CN 200910242504A CN 200910242504 A CN200910242504 A CN 200910242504A CN 101795255 B CN101795255 B CN 101795255B
- Authority
- CN
- China
- Prior art keywords
- mrow
- msub
- carrier
- frequency offset
- pilot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005070 sampling Methods 0.000 claims abstract description 11
- 230000021615 conjugation Effects 0.000 claims abstract description 8
- 239000000969 carrier Substances 0.000 claims abstract description 6
- 238000004364 calculation method Methods 0.000 claims abstract description 3
- 230000005540 biological transmission Effects 0.000 claims description 15
- 238000009825 accumulation Methods 0.000 claims description 11
- 239000000284 extract Substances 0.000 claims description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 101100460704 Aspergillus sp. (strain MF297-2) notI gene Proteins 0.000 description 2
- 229960001948 caffeine Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- RYYVLZVUVIJVGH-UHFFFAOYSA-N trimethylxanthine Natural products CN1C(=O)N(C)C(=O)C2=C1N=CN2C RYYVLZVUVIJVGH-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910242504A CN101795255B (zh) | 2009-12-17 | 2009-12-17 | 一种基于导频的ofdm系统载波频偏估计方法及系统 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200910242504A CN101795255B (zh) | 2009-12-17 | 2009-12-17 | 一种基于导频的ofdm系统载波频偏估计方法及系统 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101795255A CN101795255A (zh) | 2010-08-04 |
CN101795255B true CN101795255B (zh) | 2012-09-19 |
Family
ID=42587681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910242504A Active CN101795255B (zh) | 2009-12-17 | 2009-12-17 | 一种基于导频的ofdm系统载波频偏估计方法及系统 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN101795255B (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106549899B (zh) * | 2015-09-16 | 2019-08-02 | 中国航空工业第六一八研究所 | 一种无人机数据链信道均衡方法 |
CN110191074B (zh) * | 2018-02-23 | 2021-07-02 | 中兴通讯股份有限公司 | 一种数据解调的方法及装置 |
CN109088712B (zh) * | 2018-08-22 | 2021-02-02 | 南京铁道职业技术学院 | 一种变换域信道估计方法 |
CN112152950B (zh) * | 2020-11-24 | 2021-02-19 | 北京智芯微电子科技有限公司 | Ofdm系统中的基于稀疏离散导频的信道估计方法和装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101277290A (zh) * | 2007-03-26 | 2008-10-01 | 富士通株式会社 | 一种正交频分复用系统的频率同步方法和装置 |
CN101510869A (zh) * | 2009-04-03 | 2009-08-19 | 华为技术有限公司 | 一种整数频偏估计方法和装置 |
-
2009
- 2009-12-17 CN CN200910242504A patent/CN101795255B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101277290A (zh) * | 2007-03-26 | 2008-10-01 | 富士通株式会社 | 一种正交频分复用系统的频率同步方法和装置 |
CN101510869A (zh) * | 2009-04-03 | 2009-08-19 | 华为技术有限公司 | 一种整数频偏估计方法和装置 |
Non-Patent Citations (1)
Title |
---|
Speth, M. 等.Optimum receiver design for OFDM-based broadband transmission-part II:A Case Study.《IEEE Transactions on Communications》.2001,第49卷(第4期),第571-578页. * |
Also Published As
Publication number | Publication date |
---|---|
CN101795255A (zh) | 2010-08-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101453441B (zh) | 鲁棒的整数倍载波频率偏移估计器 | |
US20090028042A1 (en) | Symbol time synchronization method for OFDM systems | |
CN101199177A (zh) | 用于接收多载波信号的接收机装置 | |
US9413580B2 (en) | Symbol time offset correction via intercarrier interference detection in OFDM receiver | |
CN1921361B (zh) | 频道估计方法、频率追踪方法和多载波接收器 | |
CN105099981B (zh) | 一种基于前导序列的信令检测方法及装置 | |
CN101795255B (zh) | 一种基于导频的ofdm系统载波频偏估计方法及系统 | |
CN104253772A (zh) | 正交频分复用系统的信道估计方法 | |
US20100158144A1 (en) | Sampling frequency offset estimation apparatus and method of ofdm system | |
CN102857466B (zh) | 正交频分复用系统公共相差补偿方法及装置 | |
CN101888363B (zh) | 一种ofdm接收机中的信号解调方法及ofdm接收机 | |
US9369329B1 (en) | Low-complexity non-data-aided estimation of symbol time offset in OFDM systems | |
CN101465835B (zh) | Ofdm系统的信道响应估计方法及修正系统 | |
CN102215200B (zh) | 一种整数频偏估计的方法和装置 | |
CN101115047B (zh) | 一种适用于高速移动环境的正交频分复用收发系统 | |
CN103873412B (zh) | 用于对ofdm符号中的dmrs符号进行频域平均处理的方法与装置 | |
Tanhaei et al. | A novel channel estimation technique for OFDM systems with robustness against timing offset | |
Lee | Doppler effect compensation scheme based on constellation estimation for OFDM system | |
Kung et al. | Frequency domain symbol synchronization for OFDM systems | |
CN113973036B (zh) | 一种用于视频通信的正交频分复用频率同步方法 | |
KR101275693B1 (ko) | 무선 통신 시스템에서 블라인드 기반 주파수 오프셋 추정 방법 및 장치 | |
CN103905362B (zh) | 多载波通信系统中载波与取样频率偏移的估计方法与装置 | |
EP2790363A1 (en) | A new interpolation algorithm for pilot-based channel estimation in OFDM systems | |
KR100896980B1 (ko) | 직교주파수분할다중화 시스템의 주파수 오프셋 추정방법 및그 추정장치 | |
Singh et al. | Maximum Likelihood Technique using Cyclic Prefix based Estimation of Carrier Frequency Offset in OFDM System. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190716 Address after: 266000 Room 1602, Laoshan District, Qingdao City, Shandong Province Patentee after: QINGDAO HAIYONGSHUN NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 100088 room four, Heng Tong Building, No. 205, Huayuan Road, Beijing, Haidian District Patentee before: HAIER(BEIJING) IC DESIGN Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CP01 | Change in the name or title of a patent holder |
Address after: 266000 Room 1602, Laoshan District, Qingdao City, Shandong Province Patentee after: Qingdao Haiyongshun Innovation Technology Co.,Ltd. Address before: 266000 Room 1602, Laoshan District, Qingdao City, Shandong Province Patentee before: QINGDAO HAIYONGSHUN NEW ENERGY TECHNOLOGY CO.,LTD. |
|
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: Room 1602, 16th Floor, Building A, No.1 Keyuan Weiyi Road, Laoshan District, Qingdao City, Shandong Province, 266000 Patentee after: Qingdao Haiyongshun Innovation Technology Co.,Ltd. Address before: Room 1602, 16th Floor, Building A, No.1 Keyuan Weiyi Road, Laoshan District, Qingdao City, Shandong Province, 266000 Patentee before: Qingdao Haiyongshun Innovation Technology Co.,Ltd. |
|
CP01 | Change in the name or title of a patent holder |