Introduction to Modulation | SpringerLink
https://link.springer.com/chapter/10.1007/978-3-030-57484-0_6
WebApr 18, 2021 · In frequency modulation (FM) , the frequency of the carrier changes in accordance with the input modulation signal as shown in Fig. 6.2 . Notice that in FM, only the frequency changes, while the amplitude remains the same. Unlike AM, FM is more robust against signal amplitude fading.
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