AUTOMATED DEVICE OF THE EVALUATION OF CHARACTERISTICS OF PULSE CODE MODULATORS HIGH-FREQUENCY SIGNALS
A new spectral method for evaluating dynamic characteristics of pulse-code modulator (PCM) high-frequency signals, which, unlike existing methodology based on digital processing of pseudo-random signals using mutual spectral changes in bases of discrete Walsh functions and Fourier series, which ultimately improves the performance and adequacy assessment characteristics PCM. The analysis of the performance of the proposed spectral method, which confirmed that its coefficient of performance is 5 ? 75 depending on the sample size compared with a spectral method based on discrete Fourier transformation. An engineering construction methods of assessment of characteristics of PCM high-frequency signals, based on which the structure of an automated evaluation of the characteristics of PCM high-frequency signals that implements spectral method. It is shown that the proposed method makes it possible in the event of hardware and software and hardware version of devices to provide high performance and adequacy of the results of the evaluation of characteristics of PCM.