Method for recognizing digital information in transmission in mo

Details Method for recognizing digital information in transmission in mo Method for recognizing digital information in transmission in mo

1981-08-27

1983-09-06

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

371 36, H04L 122

Patent

active

044033338

ABSTRACT:
In a method for recognizing digital information, particularly in an information transmission in a mobile radio communications system, in which a sampling pulse is derived from the digital information available at the receiver, preferably from a whole multiple of the information clock frequency, and in which a sampling time is placed into the respective area of an information element in which the pulse to be sampled which represents the information element assumes its suspected, quasi-stationary state, at least one further, non-correlated sampling pulse is drived from the received information, the further pulse having a further whole multiple of the information clock frequency. The edges of the further sampling pulse are placed at a corresponding number of sampling times within a further extended sampling range of the pulse representing the information element. A respective comparison of the sampling results is carried out for an information element and a majority decision is undertaken on the basis of existing sampling results. The first sampling result and all signals obtained from the various majority decisions are subjected, variously weighted, to a further majority decision to obtain a signal which is supplied to an information sink.

REFERENCES:
patent: 3863215 (1975-01-01), McGrogan, Jr.
patent: 4338629 (1982-07-01), Oprandis et al.

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