Increasing the noise immunity of signal processing units of telecommunications on the basis of the modified synchronization schemes
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2015, Vol 0, Issue 61
Abstract
The paper presents mathematical models formalizing analytical description of the synthesis filters polyphasic device synchronization signal processing blocks of telecommunications. A device synchronization of telecommunications using polyphasic and polyphase filters. The peculiarity of these schemes is that they contain only three multiplications. It was determined that the fractional change speeds when interpolation and decimation factors are low enough effective filters polyphasic interpolators Farrow, who can effectively arbitrary (irrational) resampling. A simulation scheme of information transmission channel using polyphase interpolation solutions. It is shown that this approach allows for structural synthesis device clock synchronization, enhance immunity signal processing blocks and get the advantage of the modified scheme for a given level of probability of bit errors. Experimentally, the use of cubic Lagrange interpolators in the circuit block synchronization signal processing with 16QAM (experimental conditions) allows you to gain at 1.4 dB for BER = 10-4, modified interpolation scheme and agreed multiphase filtering scheme allow you to gain at 3 dB for BER = 10-4 and modified interpolation device at 3.4 dB Performance interpolation device primarily for high values .
Authors and Affiliations
J. Boiko
Keywords
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- EP ID EP308786
- DOI 10.20535/RADAP.2015.61.91-107
- Views 67
- Downloads 0
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