Identification of frequencies and amplitudes of microwave simultaneous signals by means of IFM methods

The basic specification and principle of operation of instantaneous frequency measurement IFM receiver based on microwave frequency discriminator MFD utilizes interferometric techniques is presented. Simultaneous signals measurement error was calculated. The method of measurement of parameters of signals coincident in time was proposed. This method uses only two parallel MFDs aided by digital processor. The processor evaluates two pair of IQ components, which the next build the digital image in form of the constellation diagram. The analysis of this constellation gives correct information about frequencies of each of simultaneous signals and about their amplitudes as well. The image processing or database techniques can be used for this analysis.