The analysis of frequency modulated signals based on the IFM receiver

The multichannel IFM receiver performance for intrapulse analysis of the frequency modulated signals in the microwave frequency band have been presented in the paper. Because of time-varying instantaneous frequency of the signals, the time-domain analysis has been used. The FSK, LFM and NLFM signals types for obtain stepped and continuous frequency modulated signals results were chosen. The results of the analysis have been presented, too. The instantaneous frequency measurement errors have been obtained. The means of this errors correction have been proposed.