CN113497774A - 一种频偏估计方法及装置、电子设备、计算机可读介质 - Google Patents
一种频偏估计方法及装置、电子设备、计算机可读介质 Download PDFInfo
- Publication number
- CN113497774A CN113497774A CN202010268523.XA CN202010268523A CN113497774A CN 113497774 A CN113497774 A CN 113497774A CN 202010268523 A CN202010268523 A CN 202010268523A CN 113497774 A CN113497774 A CN 113497774A
- Authority
- CN
- China
- Prior art keywords
- frequency offset
- offset estimation
- angle data
- input signal
- sampling
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000005070 sampling Methods 0.000 claims abstract description 86
- 238000001914 filtration Methods 0.000 claims description 15
- 238000004590 computer program Methods 0.000 claims description 5
- 238000007781 pre-processing Methods 0.000 claims description 5
- 230000003993 interaction Effects 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 description 18
- 238000004891 communication Methods 0.000 description 17
- 230000001427 coherent effect Effects 0.000 description 15
- 238000004364 calculation method Methods 0.000 description 14
- 230000010287 polarization Effects 0.000 description 11
- 238000000605 extraction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000284 extract Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- ODKSFYDXXFIFQN-UHFFFAOYSA-M argininate Chemical compound [O-]C(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-M 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
-
- 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
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/616—Details of the electronic signal processing in coherent optical receivers
- H04B10/6164—Estimation or correction of the frequency offset between the received optical signal and the optical local oscillator
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
- H04L25/40—Transmitting circuits; Receiving circuits
- H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
- H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
-
- 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
- H04L27/3881—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using sampling and digital processing, not including digital systems which imitate heterodyne or homodyne demodulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/01—Equalisers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Electromagnetism (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Measuring Frequencies, Analyzing Spectra (AREA)
- Complex Calculations (AREA)
Abstract
Description
Claims (10)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010268523.XA CN113497774A (zh) | 2020-04-07 | 2020-04-07 | 一种频偏估计方法及装置、电子设备、计算机可读介质 |
PCT/CN2021/085304 WO2021204084A1 (zh) | 2020-04-07 | 2021-04-02 | 频偏估计方法及装置、电子设备、计算机可读介质 |
EP21783743.4A EP4135277A4 (en) | 2020-04-07 | 2021-04-02 | FREQUENCY OFFSET ESTIMATION METHOD AND APPARATUS, ELECTRONIC DEVICE AND COMPUTER READABLE MEDIUM |
US17/916,327 US11894966B2 (en) | 2020-04-07 | 2021-04-02 | Method and apparatus for estimating frequency offset, electronic device and computer-readable medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010268523.XA CN113497774A (zh) | 2020-04-07 | 2020-04-07 | 一种频偏估计方法及装置、电子设备、计算机可读介质 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113497774A true CN113497774A (zh) | 2021-10-12 |
Family
ID=77995433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010268523.XA Pending CN113497774A (zh) | 2020-04-07 | 2020-04-07 | 一种频偏估计方法及装置、电子设备、计算机可读介质 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11894966B2 (zh) |
EP (1) | EP4135277A4 (zh) |
CN (1) | CN113497774A (zh) |
WO (1) | WO2021204084A1 (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117270063B (zh) * | 2023-09-13 | 2024-08-27 | 中国科学院地质与地球物理研究所 | 一种信号频率获取方法以及装置 |
CN117849509B (zh) * | 2024-01-09 | 2024-06-07 | 北京天元特通科技有限公司 | 变频器的通道间频率一致性等级的确定方法及相关设备 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106100738A (zh) * | 2016-07-25 | 2016-11-09 | 华中科技大学 | 一种相干光bpsk/qpsk自适应解调方法及装置 |
WO2018054058A1 (zh) * | 2016-09-23 | 2018-03-29 | 深圳市中兴微电子技术有限公司 | 一种光传输信道中频偏估计方法、装置及计算机存储介质 |
CN109995689A (zh) * | 2017-12-29 | 2019-07-09 | 普天信息技术有限公司 | 估计pucch频偏的方法、装置、电子设备和存储介质 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5659573A (en) * | 1994-10-04 | 1997-08-19 | Motorola, Inc. | Method and apparatus for coherent reception in a spread-spectrum receiver |
SE514986C2 (sv) * | 1995-03-01 | 2001-05-28 | Telia Ab | Metod och anordning för synkronisering vid OFDM-system |
US8073345B2 (en) * | 2006-12-22 | 2011-12-06 | Alcatel Lucent | Frequency estimation in an intradyne optical receiver |
US8335438B2 (en) * | 2009-10-30 | 2012-12-18 | Fujitsu Limited | Estimating frequency offset using a feedback loop |
CN104104624B (zh) * | 2013-04-10 | 2018-02-16 | 富士通株式会社 | 频差估计方法、装置和系统 |
JP6380403B2 (ja) * | 2013-10-07 | 2018-08-29 | 日本電気株式会社 | 搬送波周波数偏差推定装置および搬送波周波数偏差推定方法 |
CN106330322B (zh) * | 2015-06-30 | 2019-02-05 | 深圳市中兴微电子技术有限公司 | 频偏相偏处理方法及装置 |
US9912511B2 (en) * | 2016-03-07 | 2018-03-06 | Hong Kong Applied Science And Technology Research Institute Co., Ltd. | Systems and methods for time synchronization between transmitters and receivers in a communication system |
-
2020
- 2020-04-07 CN CN202010268523.XA patent/CN113497774A/zh active Pending
-
2021
- 2021-04-02 US US17/916,327 patent/US11894966B2/en active Active
- 2021-04-02 EP EP21783743.4A patent/EP4135277A4/en active Pending
- 2021-04-02 WO PCT/CN2021/085304 patent/WO2021204084A1/zh unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106100738A (zh) * | 2016-07-25 | 2016-11-09 | 华中科技大学 | 一种相干光bpsk/qpsk自适应解调方法及装置 |
WO2018054058A1 (zh) * | 2016-09-23 | 2018-03-29 | 深圳市中兴微电子技术有限公司 | 一种光传输信道中频偏估计方法、装置及计算机存储介质 |
CN109995689A (zh) * | 2017-12-29 | 2019-07-09 | 普天信息技术有限公司 | 估计pucch频偏的方法、装置、电子设备和存储介质 |
Also Published As
Publication number | Publication date |
---|---|
US11894966B2 (en) | 2024-02-06 |
WO2021204084A1 (zh) | 2021-10-14 |
EP4135277A4 (en) | 2024-05-22 |
EP4135277A1 (en) | 2023-02-15 |
US20230144980A1 (en) | 2023-05-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113497774A (zh) | 一种频偏估计方法及装置、电子设备、计算机可读介质 | |
CN108551371B (zh) | 一种qam信号盲载波相位估计方法及系统 | |
US8804878B2 (en) | Fast acquisition of frame timing and frequency | |
CN116232558B (zh) | 一种iq时延补偿方法、装置、电子设备和存储介质 | |
WO2008056871A1 (en) | Adaptive equalizer and adaptive equalization method | |
CN116366092A (zh) | 一种多普勒捕获方法、装置和存储介质 | |
US7315587B2 (en) | Demodulation method and apparatus based on differential detection system for π/4 shifted QPSK modulated wave | |
JP2000315968A (ja) | 適応型信号推定器 | |
CN114785652B (zh) | 一种基于多符号检测的解调方法和设备 | |
US5898731A (en) | Auto-coefficient renewal digital channel equalizer | |
CN112398494A (zh) | 路由器及其干扰消除装置、方法、及存储介质 | |
JP3207900B2 (ja) | 変調伝送における数値信号の搬送周波数値を評価する方法及び装置 | |
US10734950B2 (en) | Phase noise compensation apparatus and method and receiver | |
US9515745B2 (en) | Adaptive equalization in coherent receivers using a Stokes space update algorithm | |
JP3132175B2 (ja) | モデム等化器の係数の適応法および適応回路 | |
CN116505978B (zh) | 一种蓝牙信号的处理方法、装置、电子设备及存储介质 | |
CN111103602A (zh) | 多普勒频偏处理方法、装置及终端 | |
US20230129067A1 (en) | Digital Filter Arrangement for Compensating Group Velocity Dispersion in an Optical Transmission System | |
CN113542165B (zh) | 一种译码方法、装置、电子设备及存储介质 | |
CN103346822B (zh) | 用于解调器的可转换均衡器 | |
US5999579A (en) | Fading equalizer | |
JP2024135985A (ja) | 無線通信システム及び無線受信装置 | |
SU1113891A1 (ru) | Устройство адаптивного приема дискретных сигналов | |
CN114726450A (zh) | 一种色散容忍的时钟恢复方法及系统 | |
JP2014143656A (ja) | 光受信装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
CB02 | Change of applicant information |
Country or region after: China Address after: 2nd Floor, 2nd Floor, ZTE Industrial Park, No. 2 Xili Chuangyan Road, Xili Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province 518055 Applicant after: SANECHIPS TECHNOLOGY Co.,Ltd. Address before: 518055 Zhongxing Industrial Park, Liuxian Avenue, Xili street, Nanshan District, Shenzhen City, Guangdong Province Applicant before: SANECHIPS TECHNOLOGY Co.,Ltd. Country or region before: China |
|
CB02 | Change of applicant information | ||
CB02 | Change of applicant information |
Country or region after: China Address after: 518055, 2nd Floor, ZTE Industrial Park, No. 2 Chuangyan Road, Xili Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province, China Applicant after: SANECHIPS TECHNOLOGY Co.,Ltd. Address before: 2nd Floor, 2nd Floor, ZTE Industrial Park, No. 2 Xili Chuangyan Road, Xili Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province 518055 Applicant before: SANECHIPS TECHNOLOGY Co.,Ltd. Country or region before: China |
|
CB02 | Change of applicant information |