What are the types of FM demodulation?

There are different types of FM demodulators including:

  • Slope Detector.
  • Foster-Seeley Discriminator.
  • Ratio Detector.
  • Pulse-Averaging Discriminators.
  • Quadrature Detectors.
  • Phase-Locked Loops.

What are the types of AM demodulator?

The following demodulators (detectors) are used for demodulating AM wave.

  • Square Law Demodulator.
  • Envelope Detector.

What is an example of modulator demodulator?

For example, a cable modem and DSL modem are two examples of these types of Modems. Today, a “modem” is most often used to describe a broadband modem.

What are FM demodulators?

FM demodulation is a key process in the reception of a frequency modulated signal. Once the signal has been received, filtered and amplified, it is necessary to recover the original modulation from the carrier. It is this process that is called demodulation or detection.

Which method is best for frequency demodulation?

A simple and effective FM demodulation technique involves a high-pass filter (for FM-to-AM conversion) followed by an AM demodulator. A high-pass-filter-based FM demodulator is preceded by a limiter to prevent amplitude variations from contributing error to the demodulated signal.

What is modulator and demodulator?

A modulator is a device or circuit that performs modulation. A demodulator (sometimes detector) is a circuit that performs demodulation, the inverse of modulation. A modem (from modulator–demodulator), used in bidirectional communication, can perform both operations.

What is the difference between detector and demodulator?

A detector is a device that recovers data of interest from a modulated wave. A demodulator is a circuit that is used in amplitude modulation and frequency modulation receivers to separate the information that was modulated onto the carrier from the carrier itself.

What are frequency discriminators?

A frequency discriminator is defined as a converter of frequency changes into amplitude changes. Discriminators are used in various applications, one of which is the direct demodulation of fre- quency modulated signals [1, 2]. Mixing a broad- band signal down to an intermediate frequency, can be a tedious job.

What is PLL FM demodulator?

A phase-locked loop (PLL) is primarily used in tracking the phase and frequency of the carrier component of an incoming FM signal. PLL is also useful for synchronous demodulation of AM-SC (i.e., Amplitude Modulation with Suppressed carrier) signals or signals with few cycles of pilot carrier.