Demodulators for FM, Electrical Engineering

Assignment Help:

Demodulators for FM

Figure  shows a block diagram of a general FM demodulator, which is implemented by generating an AM signal whose amplitude is proportional to the instantaneous frequency of the FM signal, and then using an AM demodulator to recover the message signal. Transforming the FM signal into an AM signal can be achieved by passing the FM signal through an LTI system whose frequency response is nearly a straight line in the frequency band of the FM signal.

FM demodulators mainly fall into two categories: frequency discriminators and locked-loop demodulators. While both give the same performance for relatively high signal levels, locked- loop demodulators provide better performance than the discriminator when signal levels are low and noise is a problem. The discriminator produces an output voltage proportional to the frequency variations that occur in the FMsignal at its input. Locked-loop demodulators are more cost-efficient when implemented in IC form.

1654_Demodulators for FM.png


Related Discussions:- Demodulators for FM

Standard deviation of mean, For large number of measurements the mean is ca...

For large number of measurements the mean is calculated by taking a sample. Each sample that is taken has a mean. The mean of various sample difference from sample and are known to

Machine, function of a commutator in a DC motor

function of a commutator in a DC motor

Requirement specification for the monitor and alarm system, Prepare a User ...

Prepare a User Requirement Specification for the monitor and alarm system. User Requirements Specification should be written in a clear and unambiguous manner to state: • The

Show npn common collector amplifier, Q. Show NPN Common Collector Amplifier...

Q. Show NPN Common Collector Amplifier? The common collector amplifier, often called an emitter follower since its output is taken from the emitter resistor, is useful as

RC coupled transistor amplifier., why we plot graph to find bandwidth is dr...

why we plot graph to find bandwidth is drawn b/w av/avmax v/s frequency not av v/s frequency?

Fet operation, FET operation: Figure: I-V characteristics and o...

FET operation: Figure: I-V characteristics and output plot of a JFET n-channel transistor. The FET manages the flow of electrons (or electron holes) from the sourc

What are encoder and the decoder, There are zillions of things in electroni...

There are zillions of things in electronics known as encoders. You can look up LCDs and NAND gates as well and this is actual basics.

Power mosfet - power semiconductor devices , Power MOSFET MOSFET stands...

Power MOSFET MOSFET stands  for metal oxide semiconductor fields  effect transistor.  A power  MOSFET has  three  terminal  drain source  and  gate,. It  is unipolar device  me

Role of a bus arbiter in a multiprocessor configuration, Discuss the role o...

Discuss the role of a bus arbiter in a multiprocessor configuration. Bus arbiter: It functions to resolve priority among bus masters and permits only one device at a time to

CST162_hw5, Draw the state diagram for the state machine described by Table...

Draw the state diagram for the state machine described by Table 7.5 in the text. Note, the table shows the transition to the next state S* from the current state S for the next set

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd