APPLICATION OF SIGNAL CODE CONSTRUCTION WITH FORWARD CORRECTION OF ERRORS IN TELECOMMUNICATION SYSTEMS WITH FREQUENCY MANIPULATION
Journal Title: Телекомунікаційні та інформаційні технології - Year 2017, Vol 130, Issue 3
Abstract
The paper represents the parameters of signals of frequency manipulation for the formation of signal-code construction in telecommunication systems. The variants of functional circuits of a quadrature transmitter with an additional modulator and a frequency converter during the formation of frequency-manipulated signals are presented. Formalized process of renewal of the phase trajectory of the case of acceptance of frequency-manipulated signal. The mathematical description of the principles of the restoration of the carrier during the reception of frequency-manipulated signals is carried out in order to localize the effect of ”reverse operation” of the demodulator by relative decoding. The phase trajectories of signals of frequency manipulation are obtained while minimizing the influence of products of intersymbol interference. The effectiveness of the application of noise-proof signal-code construction on the basis of BCH codes in the telecommunication channel of information transmission with frequency manipulation for different lengths of the code block and code rate is experimentally investigated. The probability of an error from the coding rate in the case of use of the Reed-Solomon codes in the telecommunication channel for various configurations of the Galois fields is investigated. A compromise was found in choosing the optimal balance between encoding and modulation, depending on the bandwidth of the telecommunication system with frequency manipulation.
Authors and Affiliations
Julii Boiko, Oleksandr Yeriomenko, Аrtem Gaida
Keywords
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