Title:
METHOD AND SYSTEM FOR DISPLAYING THE AMPLITUDE DISTORTIONS OF A TRANSMISSION CHANNEL
Document Type and Number:
WIPO Patent Application WO2001054295
Kind Code:
A3
Abstract:
In order to display the amplitude distortions of a transmission channel, the amplitude distribution of a measurement signal of a known amplitude distribution is measured at the output of the transmission channel. Based on a given multitude of amplitude measured values that are measured and digitized in succession, the frequency of occurrence of the amplitude distribution is then determined and displayed in adjacently connected amplitude windows.
Inventors:
BALZ CHRISTOPH (DE)
FEICHT WOLFGANG (DE)
FEICHT WOLFGANG (DE)
Application Number:
PCT/EP2001/000436
Publication Date:
January 31, 2002
Filing Date:
January 16, 2001
Export Citation:
Assignee:
ROHDE & SCHWARZ (DE)
BALZ CHRISTOPH (DE)
FEICHT WOLFGANG (DE)
BALZ CHRISTOPH (DE)
FEICHT WOLFGANG (DE)
International Classes:
G01R13/02; H04B17/00; H04B17/23; H04B17/309; H04L25/02; (IPC1-7): H04B17/00; G01R13/02
Domestic Patent References:
| WO1999017463A2 | 1999-04-08 |
Foreign References:
| US4920543A | 1990-04-24 | |||
| DE19838295A1 | 1999-06-17 | |||
| DE4233222A1 | 1994-04-07 |
Other References:
MUELLER K ET AL: "APPLICATION OF AMPLITUDE HISTOGRAMS FOR QUALITY OF SERVICE MEASUREMENTS OF OPTICAL CHANNELS AND FAULT IDENTIFICATION", PROCEEDINGS OF THE EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION, 1998, XP000887223
TAKARA S H ET AL: "OPTICAL SIGNAL QUALITY MONITORING METHOD BASED ON OPTICAL SAMPLING", ELECTRONICS LETTERS,GB,IEE STEVENAGE, vol. 34, no. 22, 1998, pages 2152 - 2154, XP000886728, ISSN: 0013-5194
TAKARA S H ET AL: "OPTICAL SIGNAL QUALITY MONITORING METHOD BASED ON OPTICAL SAMPLING", ELECTRONICS LETTERS,GB,IEE STEVENAGE, vol. 34, no. 22, 1998, pages 2152 - 2154, XP000886728, ISSN: 0013-5194
Download PDF: