Frequency Modulation - Angle Modulation and Demodulation - Communication Engineering

TL;DR

Frequency modulation (FM) is a form of angle modulation where the frequency of the carrier signal is changed according to the amplitude of the modulating signal.

Transcript

hello friends now we will see the frequency modulation so the waveform sub frequency modulation the amplitude of the modulating signal is indicated by this sinusoidal signal carrier it is shown and the fm signal output we observe here as per the definition frequency of the carrier changes in accordance with amplitude of modulating signal that means... Read More

Key Insights

• 📡 Frequency modulation changes the frequency of the carrier signal based on the amplitude of the modulating signal.
• 📡 FM signals generate multiple sidebands in the frequency spectrum, resulting in a wide bandwidth.
• 🥳 The modulation index of FM is the ratio of frequency deviation to modulating frequency.
• 📡 The frequency deviation in FM is determined by the product of the frequency sensitivity and the amplitude of the modulating signal.
• 🌥️ FM modulation can result in a large number of sidebands, both above and below the carrier frequency.
• ✋ The bandwidth of FM increases with higher frequency deviation and modulating frequency.
• 📡 FM modulation can be represented mathematically using equations involving carrier frequency, frequency deviation, and modulating signal.

Summary & Key Takeaways

• Frequency modulation involves changing the frequency of the carrier signal based on the amplitude of the modulating signal.

• FM signals generate numerous sidebands in the frequency spectrum, resulting in a large bandwidth.

• The modulation index of FM is the ratio of frequency deviation to modulating frequency.