CN101162970B - 用于正交幅度调制(qam)数字信号的数字质量指标 - Google Patents
用于正交幅度调制(qam)数字信号的数字质量指标 Download PDFInfo
- Publication number
- CN101162970B CN101162970B CN2007101639614A CN200710163961A CN101162970B CN 101162970 B CN101162970 B CN 101162970B CN 2007101639614 A CN2007101639614 A CN 2007101639614A CN 200710163961 A CN200710163961 A CN 200710163961A CN 101162970 B CN101162970 B CN 101162970B
- Authority
- CN
- China
- Prior art keywords
- digital signal
- amplitude modulation
- quadrature amplitude
- modulation qam
- error rate
- 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
Images
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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0045—Arrangements at the receiver end
- H04L1/0047—Decoding adapted to other signal detection operation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Abstract
Description
比例系数 | 附录A | 附录B |
64 QAM | 0.67 | 0.50 |
128 QAM | 1.34 | N/A |
256 QAM | 1.32 | 1.00 |
DQI分量分值 | 支持性测量 |
热噪声 | SNR分析仪,连续低值 |
脉冲噪声 | SNR分析仪,偶然低值 |
CSO知CTB | SNR分析仪,15.75kHz频率分量 |
相位噪声 | I-Q角模型 |
交流干扰 | 在交流电源频率的整数倍处发生电平波动;SNR分析仪,在这些频率处的分量。 |
信号电平不稳定性 | 其他电平波动,如因放大器AGC问题所导致 |
线性失真 | 均衡器抽头值 |
互调制 | 数字频道电平相对基准电平过低 |
Claims (24)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82918106P | 2006-10-12 | 2006-10-12 | |
US60/829,181 | 2006-10-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101162970A CN101162970A (zh) | 2008-04-16 |
CN101162970B true CN101162970B (zh) | 2013-09-04 |
Family
ID=39297814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2007101639614A Active CN101162970B (zh) | 2006-10-12 | 2007-10-12 | 用于正交幅度调制(qam)数字信号的数字质量指标 |
Country Status (2)
Country | Link |
---|---|
EP (2) | EP1968270B1 (zh) |
CN (1) | CN101162970B (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101895354B (zh) * | 2010-07-20 | 2013-04-17 | 复旦大学 | 数字域测量信号误差矢量幅度的方法 |
CN102158308B (zh) * | 2011-02-12 | 2014-09-10 | 中兴通讯股份有限公司 | 一种配置上行前向纠错流程的方法及系统 |
CN102904653A (zh) * | 2012-10-24 | 2013-01-30 | 复旦大学 | 数字域测量信号误差矢量幅度的方法及其实现装置 |
US9065735B1 (en) * | 2014-04-09 | 2015-06-23 | Arris Enterprises, Inc. | Measuring upstream modulation error ratio |
CN105519002B (zh) | 2014-05-20 | 2017-08-29 | 华为技术有限公司 | 一种参数获取方法及装置 |
CN112422210B (zh) | 2019-08-23 | 2022-11-01 | 微芯片技术股份有限公司 | 用于有线局域网的信噪比和误码率估计的装置和方法 |
CN112422132A (zh) * | 2019-08-23 | 2021-02-26 | 微芯片技术股份有限公司 | 误码率估计和误码校正以及相关系统、方法和装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000047008A1 (en) * | 1999-02-04 | 2000-08-10 | Nokia Mobile Phones Ltd | Mobile station employing crc verification using decoding reliability and methods therefor |
CN1762121A (zh) * | 2003-03-13 | 2006-04-19 | 皇家飞利浦电子股份有限公司 | 数字电信的测试设备 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6611795B2 (en) * | 2000-12-06 | 2003-08-26 | Motorola, Inc. | Apparatus and method for providing adaptive forward error correction utilizing the error vector magnitude metric |
US7032159B2 (en) | 2002-02-28 | 2006-04-18 | Texas Instruments Incorporated | Error correction code parameter selection in a communication system |
US7315573B2 (en) | 2002-02-28 | 2008-01-01 | Texas Instruments Incorporated | Channel monitoring for improved parameter selection in a communication system |
JP2004140726A (ja) * | 2002-10-21 | 2004-05-13 | Hitachi Kokusai Electric Inc | 無線通信装置 |
DE60213834T2 (de) * | 2002-12-23 | 2007-08-09 | Mitsubishi Electric Information Technology Centre Europe B.V. | Verfahren zur Verbindungsanpassung |
US7796526B2 (en) | 2003-10-31 | 2010-09-14 | Acterna | Versatile communication network test apparatus and methods |
US20050144648A1 (en) | 2003-10-31 | 2005-06-30 | Gotwals Michael D. | Communication network analysis apparatus with internetwork connectivity |
US7403486B2 (en) | 2003-10-31 | 2008-07-22 | Acterna | Signal level measurement and data connection quality analysis apparatus and methods |
US20050281200A1 (en) | 2004-06-16 | 2005-12-22 | Gerard Terreault | QAM signal analysis in a network |
US8270534B2 (en) | 2005-02-10 | 2012-09-18 | St-Ericsson Sa | Method and apparatus for signal quality estimation |
-
2007
- 2007-09-19 EP EP07253717.8A patent/EP1968270B1/en active Active
- 2007-09-19 EP EP19191501.6A patent/EP3599750A3/en active Pending
- 2007-10-12 CN CN2007101639614A patent/CN101162970B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000047008A1 (en) * | 1999-02-04 | 2000-08-10 | Nokia Mobile Phones Ltd | Mobile station employing crc verification using decoding reliability and methods therefor |
CN1762121A (zh) * | 2003-03-13 | 2006-04-19 | 皇家飞利浦电子股份有限公司 | 数字电信的测试设备 |
Also Published As
Publication number | Publication date |
---|---|
EP3599750A2 (en) | 2020-01-29 |
EP3599750A3 (en) | 2020-03-04 |
CN101162970A (zh) | 2008-04-16 |
EP1968270A2 (en) | 2008-09-10 |
EP1968270B1 (en) | 2019-11-06 |
EP1968270A3 (en) | 2014-07-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7792183B2 (en) | Digital quality index for QAM digital signals | |
CN101162970B (zh) | 用于正交幅度调制(qam)数字信号的数字质量指标 | |
US10499048B2 (en) | Predictive network testing | |
US10367699B2 (en) | Network architecture for predictive services management in cable network environments | |
US7142609B2 (en) | Method and apparatus for detecting and quantifying impairments in QAM signals | |
US20030179770A1 (en) | Channel allocation and reallocation in a communication system | |
US20110090944A1 (en) | Apparatus and method for signal quality measurement on gfsk signals | |
US20080080607A1 (en) | Dynamic equalizer algorithm in digital communication equipment for multipath compensation and interference cancellation | |
CN103634595A (zh) | 使用星座数据来测量信道信噪比度量 | |
US5841667A (en) | Evaluation of signal-processor performance | |
CA2888181C (en) | Microreflection delay estimation in a catv network | |
US7016401B1 (en) | Method and apparatus for automated correlation of digital modulation impairment | |
US11646763B2 (en) | Systems and methods for LTE ingress characterize using PNM metrics | |
US6983143B2 (en) | Method of managing and monitoring performances in digital radio systems | |
Nohara et al. | A new signal quality degradation monitor for digital transmission channels | |
US10218409B2 (en) | Systems and methods for small cell placement using PNM metrics | |
JP5903620B2 (ja) | 通信性能チェッカ | |
US20170070409A1 (en) | Parameter obtaining method and apparatus | |
Scherer | Measurement tools for digital video transmission | |
CN116016073A (zh) | 基于矩量法估计与星座图特征的psk通信系统在线性能评估方法 | |
De Vito et al. | An improved method for classification and metrological characterization of disturbances on QAM signals | |
Reed-Nickerson | DVB-T Testing and Monitoring | |
Trezise | Characterising digital video set top boxes in R&D and proving performance in manufacturing | |
CN102224710A (zh) | 动态多路径检测设备和方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
ASS | Succession or assignment of patent right |
Owner name: FLEX PRODUCTS INC. A. JDS UNIPHA Free format text: FORMER OWNER: ACTERNA LLC Effective date: 20130730 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20130730 Address after: No. 430 California Milpitas Boulevard Mccarthy Applicant after: Flex Products Inc. A. JDS Unipha Address before: Maryland City, Germany, Cheng monument Central Stadium Applicant before: Actema LLC |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: No. 430 California Milpitas Boulevard Mccarthy Patentee after: VIAVI TECHNOLOGY CO., LTD Address before: No. 430 California Milpitas Boulevard Mccarthy Patentee before: Flex Products Inc. A. JDS Unipha |
|
CP01 | Change in the name or title of a patent holder | ||
CP01 | Change in the name or title of a patent holder |
Address after: No. 430 California Milpitas Boulevard Mccarthy Patentee after: Only Yahweh Communication Technology Co Ltd Address before: No. 430 California Milpitas Boulevard Mccarthy Patentee before: VIAVI SOLUTIONS INC. |