FIELD: physics, measurement technology.
SUBSTANCE: method relates to digital signal processing, particularly to spectral analysis of signals in a Fourier basis, and can be used in radar, radio communication and measurement technology. The disclosed method comprises supplementing a sample of the analysed signal with zeros, performing Fourier transform, multiplying real and imaginary parts of spectrum readings with like parts of an adjacent reading, multiplying the sum vector with minus one and zeroing all readings less than zero.
EFFECT: invention enables to reduce the level of side lobes without deterioration of resolution of spectral analysis, and increase signal-to-noise ratio.
7 dwg, 1 tbl
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