IEEE 181-2003

The scope of this revised PAR is limited to revising the title of P181. See item 18 for additional explanatory notes. The scope of the previous PAR is: ‘Revise and combine IEEE standards 181-1977 and 194-1977 into a single standard which define terms pertaining to transitions, pulses and related signals and defines procedures for estimating their parameters.’
The purpose of this revised PAR is to change the title (see Item 18). The purpose of the previous PAR is: ‘IEEE Standards 181-1977 and 194-1977 have been withdrawn. Manufacturers and users of pulse generators, waveform recorders, and high-speed digital circuits require clear concise terms for effective communication.’
Revision Standard – Superseded. This standard presents approximately 100 terms, and their definitions, for accurately and precisely describing the waveforms of pulse signals and the process of measuring pulse signals. Algorithms are provided for computing the values of defined terms that describe measurable parameters of the waveform, such as transition duration, state level, pulse amplitude, and waveform aberrations. These analysis algorithms are applicable to two-state waveforms having one or two transitions connecting these states. Compound waveform analysis is accomplished by decomposing the compound waveform into its constituent two-state single-transition waveforms.