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# Frequency Demodulation Code

12 Threads found on edaboard.com: Frequency Demodulation Code

## Need help to write code in MATLAB for CHIRP SLOPE KEYING MODULATION

Dear sir/madam, I am working in implementation of chirp slope keying modulation and demodulation in MATLAB. Simulations that I completed are: 1. Chirp signal(up and down chirp) generation completed 2. Linear frequency modulation/chirp signal simulated 3. Random data generation completed 4. finally, i need

## plzz help me to solve this code

Single Side Band (SSB) modulation by phase shift method and synchronous demodulation with phase and frequency deviations (offset errors). 103370

## help in matlab code of fsk demodulation using bandpass filter

Hello, I have written a matlab code for fsk using bandpass filter but I m not getting correct code is as follows: clc; close all; clear all; no_of_bits=1000; M=100; no_of_samples=5000; threshold = 0.5; snr=; Tb = 1; % Bit duration fc = 3/Tb; % Carrier frequency t1=linspace(0, 1, no_of_samples); f1=cos(2*pi*1000*t1);

## matlab code for cpfsk modulation and demodulation

what is cpfsk fsk frequency shift kaying cp ?

## MATLAB Code of Single Sided Band Modulation and Demodulation.

i have made this after all by myself ... some help from some respectful source.... here it is ... %Single SideBand Modulation %By Naveed Ahmad Chughtai N = 1024; fs = 2048; ts = 1/fs; %t = (0:ts:1); t=(0:N-1)/fs; fc = 600; %Carrier frequency !! Limit fc<800 to avoid freqdomain aliasing fm1 = 200; Em1 = 1; m = Em1*cos(2*pi*fm1*t);

## Pm demodulation using phase locked loop

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. clear all; close all; f=1000;%Carrier frequency fs=100000;%Sample (...)

## Define Matlab code (FM demodulation)

Hi, I have a matlab code here it acquires FM modulated signal from sound card can perform FM demodulation however, i don't why it set vcok (VCO K constant) at 0.176 anyone can explain to me how and why it is set to 0.176? Fc = 2144; %select VCO carrier frequency vcok = 0.176; %select vco constant Fs = 40000; %select sound (...)

## Need matlab code for filter in fm demodulation

i need matlab code for filter in fm demodulation. the basic problem is dat i could find codes but nowhere they were using the modulated signal foer filteration. they just took the specifications as sampling rate and cutoff frequency etc. but as is the case we have to pass the I and Q componens of the signal through the (...)

## matlab code for frequency demodulation using pll

please can any one help me by providing matlab code for frequency demodualtion using phase locked loop

## Verilog Code/ Algorithm for AM, FM and/or PM Demodulation

this type of code is hard to find, because the code generally is proprietary. Does any one have a working Verilog code/ algorithm for envelope detection, phase discriminator and/or frequency discriminator? I already have a working code for demodulation of ASK and FSK but i dont think (...)

## sampling frequency offset in ofdm

hi everybidy, i have simulated a code in matlab for the demodulation of ofdm signal (dab). In the synchronisation process, i found the clock offset of 13.035 khz in the spectrum after downconversion. i used a nco to remove the frequency offset. Now when i differentially decode the symbols, i get 5th and 6th symbols (...)

## Problem in FSK modem code

Hi Somia, I tested your signal, it had a small bug. sampling frequency to symbol rate ratio must be integer. e.g. if you want to keep sampling frequency in 8000 you can specify 8000/6 = 1333 or 8000/5 = 1600 to symbol rate. Hope these helps. Regards.