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Simultaneous optimization of combination of error-correcting code and synchronizing sequences in MWD-systems

Keywords:

O.V. Goryachkin – Dr. Sc. (Eng.), Associate Professor, Head of Department «Radio Engineering Theory and Communication», Volga State University of Telecommunications and Informatics (Samara) D.V. Sukhanov – Senior Lecturer, Department «Radio Engineering Theory and Communication», Volga State University of Telecommunications and Informatics (Samara) E-mail: dms_cyx@mail.ru


The article deals with the problem of increasing noise immunity systems synchronization in downhole telemetry systems (DTS). Par-ticular attention is paid to the analysis of abnormal system errors sync. To solve the problem of comparison between a combinations of noise immunity code (NIC) with the synchronization sequence (SP) on the probability of false synchronization for serial communication systems used in DTS. Assuming the independence of samples on the output of the matched filter of the synchronizer of a formula for the analytical calculation of the probability of false synchronization additive white noise (AWGN) channel. During the research proved simulation and analytical methods of selection and comparison between fixed combinations of the USC with SP that can be used to find optimum combinations having maximum noise immunity.
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