need help in fm demodulation

[ragabs]

hiii all
can u help me by sending to me
where can i get a complete description of different techniques of fm demodulation

i will use it in writting a comparison between the different techniques of fm demodulation.

thank you

 

[ragabs]

Re: need help

it is a required report

 

[Antonios]

U can use Simon Hayken book named Communication Techniqe

and this is number of Demodulation Techniqe.

Analog Techniqe

1- Quadrituer Coil (conver ferquancy deviation to phase deviation then detect thase change by low pass the multiplay of X(t)*X(t+90 phase sheft)

Digital techniqe:

1- Two band passs filter.

 

[annum]

you can consult principle of communication book in which modulation and demodulation techniques are menioned