FM demodulation with arctan

1. What is Arctangent demodulation?
2. How an FM demodulation can be carried out using PLLS?
3. What are the different methods of FM detection?
4. What is the basic principle of demodulating FM signal?

What is Arctangent demodulation?

Arctangent demodulation overcomes position sensitivity issues while removing the small-angle limitation on the range for phase deviation detection, which can be significant in single-channel systems operating at high frequencies.

How an FM demodulation can be carried out using PLLS?

To look at the operation of the PLL FM demodulator take the condition where no modulation is applied and the carrier is in the centre position of the pass-band the voltage on the tune line to the VCO is set to the mid position. However if the carrier deviates in frequency, the loop will try to keep the loop in lock.

What are the different methods of FM detection?

There are different types of FM demodulators including: Slope Detector. Foster-Seeley Discriminator. Ratio Detector.

What is the basic principle of demodulating FM signal?

Frequency demodulation is the inverse of frequency modulation. The original modulating signal is obtained as output following demodulation. After the signal has been received, filtered, and amplified, the original modulation from the carrier must be recovered. This is known as demodulation or detection.