| 摘要 |
FIELD: measurement equipment.SUBSTANCE: method to dedicate a useful signal from noise consists in filtration of an input signal in the frequency area, corresponding to the spectrum of the useful signal, in dedication of at least one additional signal from the input signal through filtration, at least in one of frequency areas lying outside the border of the useful signal spectrum, and with the help of the additional signal a signal of noise compensation is generated. The device for dedication of a useful signal from noise comprises a source of an input signal connected to an input of the main filter designed for dedication of a signal in the area of frequencies, which correspond to the spectrum of the useful signal, a unit of additional filters, designed to dedicate additional signals in the areas of frequencies that lie outside the spectrum of the useful signal, a unit of signal processing.EFFECT: increased signal-noise ratio when dedicating a signal from noise.3 cl, 1 dwg |
