Noise margin measurement and error probability prediction

Details Noise margin measurement and error probability prediction Noise margin measurement and error probability prediction

1980-12-03

1983-05-17

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

364554, 328164, H04B 346

Patent

active

043843549

ABSTRACT:
This invention relates to method and apparatus for measuring noise margins in digital transmission systems. The method requires the introduction of a variable pulse into a sequence of pulses which represents normal traffic, varying a parameter of the pulse, detecting the pulse, and accumulating information concerning the variations to determine probability distribution of the deviations produced by measuring the variations relative to a standard. The apparatus includes means for introducing the variable pulse into a sequence of pulses and for observing and recording detection of the variable pulse in each sequence to compile a probability distribution of the aforementioned deviations.

REFERENCES:
patent: 3497684 (1970-02-01), McKiernan
patent: 3731011 (1973-05-01), Lachaise
patent: 3898564 (1975-08-01), Waldhauer et al.
patent: 3944929 (1976-03-01), Matsuo
patent: 3965294 (1976-06-01), Renz et al.
patent: 4090242 (1978-05-01), Lerma et al.
Van den Elzen, `On the Theory and the Calculation of Worst Case Dye Openings in Data-Transmission Systems`, by Philips Research Reports 30, vol. 30, No. 6, 1975.

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