| 摘要 |
The invention relates to a process for determining the group delay distortions of components of a telecommunication system, in which the distortion is established with the aid of Fourier analysis of the output signal of the components. In the determination of the group delay distortions of PCM coders (C) or decoders (DC), the output signal of these components is evaluated directly by a computing element (RB1; RB2) of a suitable form, for example by means of fast Fourier transformation (FFT). The invention can be applied in particular in the measurement of digital transmission and switching systems. <IMAGE>
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