I want to write a code in which i could generate the hanning window with any frequency entered by the user

I want to develop a code in which if i put the frequency in khz then repective hanning window or hanning wave could be genrated and corresponding wave plot should also generate the excel file.

Answer 1

[Pratheek]

Hi Sanket Shivaji

You can use the below code to generate Hanning Window for a input wave form. You can go through the comments to understand the code.

f_khz = input('Enter the frequency in kHz: ');   % Getting the frequency in kHz 

Fs = 10 * f_khz; % Use Sampling frequency as 10 times that of input frequency
duration = 1;  % Duration of the waveform in seconds
N = Fs * duration;  % Number of samples
t = linspace(0, duration, N);  % Generating the time vector
x = sin(2 * pi * f_khz * t);  % Generating the waveform
w = hann(N); % Generating the Hanning window
x_w = x .* w';  % Applying Hanning window to waveform

% Ploting the waveform
subplot(2,1,1);
plot(t, x);
title('Original Waveform');
xlabel('Time (s)');
ylabel('Amplitude');

% Plotting the Hanning window
subplot(2,1,2);
plot(t, x_w);
title('Waveform with Hanning Window');
xlabel('Time (s)');
ylabel('Amplitude');

% Save the waveform data to an Excel file
filename = sprintf('waveform_%dkHz.xlsx', f_khz);
xlswrite(filename, x_w', 'Sheet1');