MATLAB: How extracted envelop signal in matlab 2013 envelope decibel [y,fs]=wavread(‘fil.wav’) Db=mag2db(y) How find envelop of db??!! Best Answer Use the hilbert function, specifically: DbEnv = abs(hilbert(Db));Example — t = 0:0.01:5; % Create Datas = sin(2*pi*t) .* cos(2*pi*10*t); % Create Datapsenv = abs(hilbert(s)); % Upper Envelopensenv = abs(hilbert(-s)); % Lower Envelopefigureplot(t, s, 'LineWidth',1.5)hold onplot(t, psenv, '-r', 'LineWidth',2)plot(t, -nsenv, '-g', 'LineWidth',2)hold offgridlegend('Signal','Upper Envelope','Lower Envelope', 'Location','N'). Related SolutionsMATLAB: Get envelope of multiples curve With your data, I would simply use the min and max functions:d = xlsread('Lila wagou 3_Curves.xlsx');t = d(:,1);data = d(:,2:end);env = [min(data,[],2) max(data,[],2)];figure(1)plot(t, data)hold onplot(t, env(:,1), '-g', 'LineWidth',2)plot(t, env(:,2), '-g', 'LineWidth',2)hold offgrid MATLAB: Linewidth for function step Get the outputs of the step function, then plot them using a plot call:[y,t] = step(value_1);figureplot(t, squeeze(y), 'LineWidth',2)gridThe Control System Toolbox plot functions do not allow you to alter their properties easily, if at all. Related QuestionCode for shannon energy envelopeReplace with another curve ?How generate one signale of this (in picture)
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