The estimation of simultaneous signals frequencies in the IFM receiver using parametric methods

In the paper the approach using two special parametric methods to measure the frequencies of two simultaneous signals in the IFM receiver has been presented. Both algorithms have based on the assumption that the IFM receiver generates the autocorrelation, which can be used to determine two simultaneous signals frequencies. Some differences and similarities between both methods as well as problems that stem from this approach have been indicated. Experimental data have been shown and compared to simulation results.