Method for recognizing digital information transmitted in a mobi

Details Method for recognizing digital information transmitted in a mobi Method for recognizing digital information transmitted in a mobi

1981-08-27

1984-02-14

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375102, 371 36, H04B 1700

Patent

active

044320949

ABSTRACT:
In a method for recognizing digital information in a digital information transmission, particularly in a mobile radio communications system, a sampling pulse is derived from the digital information available at the receiver, preferably derived with a whole multiple of the information clock frequency. A sampling time is located in the respective area of an information element during its suspected quasi-stationary state. At least one further sampling pulse is derived from the digital information at 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 a first sampling result is undertaken with one or more following sampling results for each individual information. A majority decision is then performed on the basis of the existing sampling results in order to determine the respective sampling mode which exhibits the smallest perceived information bit error rate.

REFERENCES:
patent: 3978408 (1976-08-01), Das Gupta et al.
patent: 4063174 (1977-12-01), Das Gupta
patent: 4099023 (1978-07-01), Gerges et al.
patent: 4302831 (1981-11-01), Zemanek

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