| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: method of picking up speech signal in presence of interference, which comprises converting an input mixture of an acoustic signal and interference into an electrical signal, filtering with a band-pass filter to obtain a mixture of a speech signal and interference with a given bandwidth, which is amplified in a low frequency amplifier; an analogue-to-digital converter (ADC) generates readings of the mixture of the signal and interference in digital form and transmits said readings to a computing device, which forms pairs of sums of amplitudes of the readings in a certain manner and calculates signal amplitudes for each moment in time using the obtained summation results by solving corresponding systems of linear equations.EFFECT: high efficiency of picking up a speech signal in the presence of interference.2 dwg, 1 tbl |
