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
Related Articles
- EP ID EP308786
- DOI 10.20535/RADAP.2015.61.91-107
- Views 59
- Downloads 0
Analysis of the microwave self-noise influencing on the parameters of the Dicke radiometer
Introduction. The application domains of the radiometric measuring are described and the basic types of radiometers are listed. The best "price – measurement precision" index (in the authors' opinion ) has a Dicke radiom...
The hyperbolic-accidental characteristics of thermal processes in devices of the radioelectronic apparatus
Thermal process in devices REА are submitted as hyperbolic-accidental of function. Are considered е of the characteristic of mathematical models and their decisions. The example of definition of the numerical characteris...
Evaluation of electromagnetic compatibility of highfrequency induction systems in a local facility
The article shows one approach to assess the electromagnetic environment in a local facility that is running induction system for transferring high frequency signals. A distinctive feature of these systems is to use a re...
Using neural networks for the synthesis of microwave devices
In this work the advantages of neural networks for the synthesis of microwave devices are considered. The problems which can occur using neural networks as the universal approximating system in problems of frequency-sele...
Mathematical model of frequency steering process for reactive load current
A simulation mathematical model for the frequency control current reactive load was proposed and studied in order to develop a managed source of the magnetic field. An equivalent circuit of a magnetic field source as rea...