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BS EN 60469:2013

BS EN 60469:2013

$198.66

Transitions, pulses and related waveforms. Terms, definitions and algorithms

Published By Publication Date Number of Pages
BSI 2013 68
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IEC 60469:2013 provides definitions of terms pertaining to transitions, pulses, and related waveforms and provides definitions and descriptions of techniques and procedures for measuring their parameters. The waveforms considered in this standard are those that make a number of transitions and that remain relatively constant in the time intervals between transitions. Signals and their waveforms for which this standard apply include but are not limited to those used in: – digital communications, data communications, and computing; – studies of transient biological, cosmological, and physical events; – and electrical, chemical, and thermal pulses encountered and used in a variety of industrial, commercial, and consumer applications. This standard does not apply to sinusoidally-varying or other continuously-varying signals and their waveforms. The object of this standard is to facilitate accurate and precise communication concerning parameters of transitions, pulses, and related waveforms and the techniques and procedures for measuring them. IEC 60469:2013 combine the contents of IEC 60469-1 and IEC 60469-2. IEC 60469-1 dealt with terms and definitions for describing waveform parameters and IEC 60469-2 described the waveform measurement process. Other technical revisions include updating of terminology, errors correction, algorithms addition for computing values of pulse parameters, and addition of a newly-developed method for computing state levels. Changes to the definitions include adding new terms and definitions, deleting unused terms and definitions, expanding the list of deprecated terms, and updating and modifying existing definitions.

PDF Catalog

PDF Pages PDF Title
5 English
CONTENTS
7 INTRODUCTION
8 1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 General
3.2 Terms and definitions
11 Figure 1 – Single positive-going transition
12 Figure 2 – Single negative-going transition
14 Figure 3 – Single positive pulse waveform
Figure 4 – Single negative pulse waveform
16 Figure 5 – Overshoot and undershoot in single positive-going transition
Figure 6 – Overshoot and undershoot in a single negative-going transition
18 Figure 7 – Pulse train
23 Figure 8 – Compound waveform
24 Figure 9 – Calculation of waveform aberration
26 3.3 Symbols
3.4 Deprecated terms
27 4 Measurement and analysis techniques
4.1 General
4.2 Method of waveform measurement
28 4.3 Description of the waveform measurement process
Figure 10 – Waveform acquisition and measurement process
29 4.4 Waveform epoch determination
4.4.1 Selection of waveform epoch
4.4.2 Exclusion of data from analysis
5 Analysis algorithms for waveforms
5.1 Overview and guidance
5.2 Selecting state levels
5.2.1 General
5.2.2 Data-distribution-based methods – Histograms
Figures
32 5.2.3 Data-distribution-based methods – Shorth estimator
34 5.2.4 Other methods
35 5.2.5 Algorithm switching
5.3 Determination of other single transition waveform parameters
5.3.1 General
5.3.2 Algorithm for calculating signed waveform amplitude
36 5.3.3 Algorithm for calculating percent reference levels
5.3.4 Algorithms for calculating reference level instants
37 5.3.5 Algorithm for calculating transition duration between x1 % and x2 % reference levels
5.3.6 Algorithm for calculating the undershoot and overshoot aberrations of step-like waveforms
39 5.3.7 Algorithm for calculating waveform aberrations
40 5.3.8 Algorithm for calculating transition settling duration
41 5.3.9 Algorithm for calculating transition settling error
5.4 Analysis of single and repetitive pulse waveforms
5.4.1 General
5.4.2 Algorithm for calculating pulse duration
5.4.3 Algorithm for calculating waveform period
42 5.4.4 Algorithm for calculating pulse separation
43 5.4.5 Algorithm for calculating duty factor
5.5 Analysis of compound waveforms
5.5.1 General
44 5.5.2 Waveform parsing
Figure 11 – Generation of a compound waveform
46 5.5.3 Subepoch classification
5.5.4 Waveform reconstitution
47 5.6 Analysis of impulse-like waveforms
5.6.1 Algorithm for calculating the impulse amplitude
5.6.2 Algorithm for calculating impulse center instant
5.7 Analysis of time relationships between different waveforms
5.7.1 General
5.7.2 Algorithm for calculating delay between different waveforms
5.8 Analysis of waveform aberration
5.9 Analysis of fluctuation and jitter
5.9.1 General
48 5.9.2 Determining standard deviations
50 Table 1 – Comparison of the results from the exact and approximate formulas for computing the standard deviation of the calculated standard deviations
51 5.9.3 Measuring fluctuation and jitter of an instrument
54 5.9.4 Measuring fluctuation and jitter of a signal source
55 Annex A (informative)Waveform examples
Figure A.1 – Step-like waveform
Tables
56 Figure A.2 – Linear transition waveform
57 Figure A.3 – Exponential waveform
58 Figure A.4 – Impulse-like waveform
59 Figure A.5 – Rectangular pulse waveform
60 Figure A.6 – Trapezoidal pulse waveform
61 Figure A.7 – Triangular pulse waveform
62 Figure A.8 – Exponential pulse waveform
63 Figure A.9 – Double pulse waveform
Figure A.10 – Bipolar pulse waveform
64 Figure A.11 – Staircase waveform
Figure A.12 – Pulse train
65 Bibliography

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BS EN 60469:2013
$198.66