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# jessica david

Actif depuis 2011

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Question

how to filter awgn
is there any way to filter awgn noise from my signal. I tried using the function smooth(signal) but it totally distorts my dat...

plus de 11 ans il y a | 1 réponse | 0

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réponse

Question

data from scatterplot
for the following code M = 16; % Alphabet size x = randint(1000,1,M); % Random message y = dpskmod(x,M); % Modulate...

plus de 11 ans il y a | 1 réponse | 0

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réponse

Question

quantize/digitize wav file
how can I digitize/quantize .wav file in matlab well, basically i am trying to modulate it, [X, Fs, nbits] = wavread('filenam...

plus de 11 ans il y a | 1 réponse | 0

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réponse

Question

Modulate a sine wave after quantizing it
Help! I am trying to modulate a sine wave after quantizing it, but keep getting an error. ================================= t ...

plus de 11 ans il y a | 1 réponse | 0

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A répondu
how does AWGN and 16qam mod demod m file code look like ?
M = 16; % Size of alphabet x = randint(1000,1,M); % Random signal y = qammod(x,M); X=awgn(y,10);%add Gaussian noise %s...

plus de 11 ans il y a | 0

Question

this is the code to qam modulate a quantized sine wave, for some reason i get only 15 constellation points instead of 16. =====...

plus de 11 ans il y a | 1 réponse | 0

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Question

scatterplot
is there any way to get the (x,y) coordinates of a scatterplot.

plus de 11 ans il y a | 3 réponses | 0

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réponses

Question

>> t = [0:.1:2*pi]; % Times at which to sample the sine function sig = sin(t); % Original signal, a sine wave partition = [-1:...

plus de 11 ans il y a | 1 réponse | 0

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réponse

A répondu
Fsk constellation diagram
i dont know in stimulink but scatterplot will do the trick in matlab coding. i need to do FSK on a sine wave, but i keep get...

plus de 11 ans il y a | 0

A répondu
Frequency modulating a wav file?
hi, do you know how to perform fsk on a .wav file

plus de 11 ans il y a | 0