On Algorithm of the Quasi-Matched Filtration of Tone Echo-Signals

Abstract

For filtration of the tone echo-signals in the presence of reverberation interference, a narrow-band filter is synthesized, with the AFC being at a low level beyond the passband. The given property of the filter is reached due to introduction of a weighing window in the process of the spectral analysis. A traditional choice of a spectral decomposition interval, as well as the choice of the parameters of a specified window, results in the width of a filter passband being unmatched with duration of an echo-signal. The paper considers a problem of synthesis of an improved filter, with no defect described above.