METHOD OF NON-STATIONARY SIGNALS FILTERING Russian patent published in 2018 - IPC G01M7/00 

FIELD: measurement; test.

SUBSTANCE: invention relates to metrology, particularly to dynamic processes measurement facilities. Method of non-stationary signals filtering representing the implementations of the dynamic processes under investigation with the subsequent allocation of a useful signal is carried out as follows. First, the non-stationary signal is supplied to the input of the integration circuit, at that, after integration, the signal is supplied to the input of the control device, which at its output generates a voltage in the form of a rectangular pulse, at that, the said voltage controls the filter operation, at the output of which a predetermined implementation is formed both in the filter transparency band, and in the given time limits, at hat, the investigated signal filtering is performed simultaneously with the gating operation.

EFFECT: technical result of the proposed invention is the possibility to search for and detect a useful signal accompanied by a broadband stationary process, and the subsequent determination of the useful signal characteristics.

1 cl, 6 dwg