METODO E DISPOSITIVO DI COMPENSAZIONE DEI DISTURBI D'ALLINEAMENTO IN PARTICOLARE NEI SISTEMI DI RADIOCOMUNICAZIONE A TRASMISSIONE IN- TERROTTA

The invention refers to a method and a device to compensate for alignment disturbances which are caused in particular by differences in the propagation time of the data packets D+P1+P2 transmitted, especially in interrupted radio communication systems, which bring about a phase difference between th...

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Bibliographic Details
Main Author PERNA ANGELO
Format Patent
LanguageItalian
Published 23.06.1992
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:The invention refers to a method and a device to compensate for alignment disturbances which are caused in particular by differences in the propagation time of the data packets D+P1+P2 transmitted, especially in interrupted radio communication systems, which bring about a phase difference between the effective transmission clock for data packets D and the nominal transmission clock NCLK as reconstructed in the reception phase thanks to a preamble packet and which is utilised for the reading and/or regeneration of the data D. According to the invention, from the reconstructed nominal transmission clock NCLK is generated a plurality a plurality of copies CLK.1-CLK.n of same, each one having a slightly different phase. For the reading and/or regeneration of the data D, that clock copy CLK.n is used which has produced the best result in the recognition of a sequence of fine synchronisation bits (fine synchronisation word) P2, transmitted in the preamble packet P1+P2 and known 6 for the comparison with the receiving station.
Bibliography:Application Number: IT1992GE00067