المستخلص: |
In this research the main idea is how to generate one signal using three different signals with three different frequencies, These signals are; the carrier signal, the envelope signal and the phase signal, These three signals all together will generate what we called as AM - FM signal model, The main focus of this research is how to create these types of signals and using the AM - FM model to estimate the modulation components from other type of signals, like a speech signal, which is assumed to be modulation information represented by the instantaneous frequency (phase) and the instantaneous amplitude (envelope). Many example presented in this research to show the power of the AM - FM method to extract the instantaneous information from speech and chirp signals.
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