7. Computer methods for processing signals and images

G.A. Kashcheeva
Institute of Automation and Electrometry, Russian Academy of Sciences, Siberian Branch, Russia

Phase metod for evaluation of doppler signal instantaneous frequency. discrete Hilbert transform and related errors

The comparative results of the Doppler signal instantaneous frequency estimates are presented based on the phase increment calculation at the interval determined by the sampling rate for two quadrature signals formed in different ways. The method uses a standard program of the signal phase current value calculation, eliminates the need for an analog or computer differentiation of its quadrature components, reduces the amount of performed calculations and increases system performance.
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