MATLAB: Hamming window matlab code

doit4mehammingno attempt

hi evrybody i need matlab code for hamming window

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if x is an n-element input signal and t is the time scale
w = 0.54 - 0.46*cos(2*pi*t/(n-1));
wx = x.*w;

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MATLAB: FFT Peaks Resolver Signal

t=0:(1/80000):(79999/80000);
r_sin=sin(2*pi*5000*t).';
r_cos=sin(2*pi*5000*t).';

If applied to synthetic input signals, the code produces the expected results (peaks at +/-5000 Hz). Maybe the frequency in the actual signal is at 10 kHz, or the actual signal was sampled at 40kHz instead of 80kHz?

MATLAB: Design FIR filter using cot off frequency

Clc;

Clear all;

Close all;

N=9; %number of samples

wc=1.2; %cut of frequncy wc=(2*fc/fs); f=corner freq., fs=sampling freq.

b=fir1(N,wc/pi,hamming(N+1));

w=0:0.01:1.2*pi;

h=freqz(b,1,w);

subplot(211);

plot(w/pi,20*log(abs(h)));

title('Magnitude response(dB)');

xlabel('Frequency(*pi rad/sample)');

ylabel('magnitude in dB');

subplot(212);

plot(w/pi,phase(h));

title('Phase response');

xlabel('Frequency(*pi rad/sec)');

ylabel('Phase in radians');

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Related Solutions

MATLAB: FFT Peaks Resolver Signal

MATLAB: Design FIR filter using cot off frequency

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