9 Threads found on edaboard.com: Fm Demodulation Pll
Hello everyone!!! I have a problem. I would like to perform phase demodulation using pll. I have some matlab code that do that in the case of FM. Here is the code:
%This m-file demonstrates a pll which tracks and demodulates an FM carrier.
N=5000;%Number of (...)
RF, Microwave, Antennas and Optics :: 11-02-2011 07:11 :: FFFPLL :: Replies: 0 :: Views: 877
For FM demodulation: If modulation index is low (max. phase deviation less than 1 radian), you could use a narrow-band pll as a phase demodulator. The output is the ouput of the phase detector, that after derivation gives the frequency.
This can work for low-index FM but not for FSK.
Why do you need a method other than take the control voltage o
Analog Integrated Circuit (IC) Design, Layout and Fabrication :: 02-22-2010 11:36 :: zorro :: Replies: 1 :: Views: 1361
In my opinion, the correct topic is FM-demodulation rather than spectral analysis. The problem can't be solved however without considering the characteristics of the baseband signal. As another point, the demodulator should be almost invariant to a varying carrier level. The most promising FM-demodulation methods are based on a pll tracking (...)
Digital Signal Processing :: 09-02-2009 06:07 :: FvM :: Replies: 4 :: Views: 1003
Can someone explain or point me to the right link on how a pll is used to demodulate a FM carrier? Every book I read tells me it can be done but not specific enough on how it is done. I have read Horowitz & Hill: The Art of Electronics 2nd edition and RF Engineering for Wireless Networks by Daniel M. Dobkins.
RF, Microwave, Antennas and Optics :: 09-05-2008 16:52 :: robismyname :: Replies: 14 :: Views: 18663
u can use communication tab in simulink and FM.
MATLAB HELP is the best ref for MATLAB use.
Elementary Electronic Questions :: 10-20-2007 10:24 :: Ali.Samari :: Replies: 1 :: Views: 3924
Hi guys can you please help me i am simulating an fm system here is the code below I am having a problem on the demodulation side I am trying to demodulate using pll desgning (Phase Lock Loop). But it is giving me an error at last line R has to be positive number I think its R please help I am giving up
Digital Signal Processing :: 12-02-2005 22:36 :: locchamp :: Replies: 4 :: Views: 14457
RF, Microwave, Antennas and Optics :: 12-05-2005 16:43 :: are :: Replies: 2 :: Views: 846
Just found some schematics * by t
Analog Circuit Design :: 07-31-2005 13:15 :: papyaki :: Replies: 1 :: Views: 6258
the pll is a phase locked loop , it has many application and many configrations , it may used in demodulation of FM and FSK or it can be used in clock and data recovery circuits
it consists of 1) phase detector
2) loop filter
and may contain a divider
the frequency Synthesizer is a ci
RF, Microwave, Antennas and Optics :: 03-18-2004 10:18 :: khouly :: Replies: 2 :: Views: 1417