The Analysis and Errors Correction in Measuring Systems with Parallel Channels

V.N. Vyukhin (Russia)

Keywords

Measurement, analogdigital conversion, parallelchannels, simulation, algorithms, error analysis, errorcorrection, sampling, amplitudephase Fourier transform, interpolation

Abstract

Results of computer simulation of errors of measuring systems with parallel channels are presented. It is shown, that at multisequencing the process of measurement, there are errors, which are not present in one-channel devices. Errors of separate channels result to distortions an output signal and to appearance undesirable frequencies in a spectrum of output signal. Effects of errors of offset, gain and sampling time errors are researched. The algorithm of correction of sampling time errors on based of amplitude phase Fourier transform (FFT) is developed and research of accuracy of operation of algorithm is lead.

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