What is an FM discriminator?

FM detectors are circuits that instantaneously convert the frequency changes from the carrier signal to its output voltage counterpart. They are also known as frequency demodulators or discriminators.

What is the function of discriminator in FM transmitter?

This enables it to provide a greater level of noise immunity as most noise is amplitude noise, and it also enables the circuit to operate satisfactorily with lower levels of limiting in the preceding IF stages of the receiver.

How does a discriminator circuit work?

The Foster–Seeley discriminator uses a tuned RF transformer to convert frequency changes into amplitude changes. A transformer, tuned to the carrier frequency, is connected to two rectifier diodes. The circuit resembles a full-wave bridge rectifier.

What is the principle of FM demodulation?

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.

What is the discriminator?

Definition of discriminator : one that discriminates especially : a circuit that can be adjusted to accept or reject signals of different characteristics (such as amplitude or frequency)

What is FM and its types?

Frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. The technology is used in telecommunications, radio broadcasting, signal processing, and computing.

What is electronic discriminator?

Discriminator definition (electronics) A device that converts a property of an input signal, such as frequency or phase, into an amplitude variation, depending on how the signal differs from a standard or reference signal. noun. One that discriminates. noun.

What is frequency discrimination method?

Frequency discrimination refers to our ability to detect a change in the frequency of a pure tone and is expressed as a percentage with respect to the reference frequency.

What is the output of discriminator?

The Discriminator output from a scanner is the raw, unfiltered signal that a scanner produces before it is sent to the audio stage for output through the speaker — also called the “baseband audio.” This discriminator source is required for applications such as Trunker, T4Win, UniTrunker, and DSD.

What is discriminator loss?

Discriminator loss log(D(x)) refers to the probability that the generator is rightly classifying the real image, maximizing log(1-D(G(z))) would help it to correctly label the fake image that comes from the generator.