About FFT
For general information about the Fourier transformation and the
special characteristics of the fast Fourier transform, please refer to the
standard literature. For details, see the following documents:
•
Frederic J. Harris, "On the use of Windows in Harmonic Analysis
with the Discrete Fourier Transform", Proceedings of the IEEE, Vol.
66, January 1978
•
"The Fundamentals of Signal Analysis", Agilent Application Note
243, Publ. No. 5952-8898E
•
"Fibre Channel - Methodologies for Jitter Specifications", National
Committee for Information Technology Standardization (NCITS),
T11.2/Project 1230/Rev. 10, June 1999
•
Yi Cai, Bernd Laquai, Kent Luchman, "Jitter Testing for Gigabit
Serial Communication Transceivers", IEEE Design and Test of
Computers, Jan-Feb 2002
The error record contains a bipolar, rectangular signal. If such a signal
is periodic, you can expect a spectrum as illustrated below.
The fundamental frequency and its harmonics appear.
Such spectra have been measured with the Spectral Jitter measurement.
A logarithmic power scale shows the details:
5
Advanced Analysis
284
Agilent J-BERT N4903 High-Performance Serial BERT
FFT results
Summary of Contents for J-BERT N4903
Page 1: ...S Agilent J BERT N4903 High Performance Serial BERT User Guide s Agilent Technologies...
Page 68: ...2 Setting up Patterns 68 Agilent J BERT N4903 High Performance Serial BERT...
Page 158: ...4 Setting up the Error Detector 158 Agilent J BERT N4903 High Performance Serial BERT...
Page 314: ...6 Evaluating Results 314 Agilent J BERT N4903 High Performance Serial BERT...
Page 374: ...7 Jitter Tolerance Tests 374 Agilent J BERT N4903 High Performance Serial BERT...
Page 394: ...8 Solving Problems 394 Agilent J BERT N4903 High Performance Serial BERT...
Page 434: ...Index 434 Agilent J BERT N4903 High Performance Serial BERT...
