Extraction of the Envelope of Radio Impulse Signals Using the Digital Processing Methods Based on Correlation Fucntion and Hilbert Transform

The article presents the results of extracting the envelope of radio impulse signals using the digital processing methods. Three methods of extracting the envelope are studied in the work: correlation function; the Hilbert transform; and the new approach in which the combination of correlation function and Hilbert transform are used. For the research we used the measured reflectograms of the multilayer liquid. As a result of processing and comparing a variety of experimental characteristics the accuracy of determination of Hilbertcorrelation combination sequence was better than standard methods of processing. The resulting waveform is easier to analyze and process, but the processing need more time to calculate.