PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

Spectrogram of the speech file mtlb 1 0.8 0.6 0.4 0.2 0 0 Frequency 500 1000 1500 Time Specgram of sinusoid + noise 1 0.8 0.6 0. ...

Plots of square wave approximations using harmonics 0.8 0.6 0.2 0 −0.2 −0.4 −0.6 −0.8 0.4 Amplitude 0 0.5^1 1.5^2 2.5 3 3.5^4 ti ...

Approximations of the sawtooth wave by sum of harmonics 0.6 0.4 0.2 −0.2 −0.4 −0.6 −0.8 0 Amplitude 0 0.5 1 1.5 2 2.5 3 3.5 4 ti ...

20 10 − 10 − 20 0 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 0 0 5 10 − 10 − 5 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 time (sec) Amplitude (amps/vol ...

0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.2 0.4 0.6 0.8 1 Normalized frequency Gain Chebyshev type-1 LPF/order n = 1, 2, 3, 4, 10 n = 1 n = ...

0 1 2 3 4 5 6 0 0.2 0.4 0.6 0.8 1 Normalized frequency Gain Elliptic LPF/order n = 1, 2, 3, 4, 10 n = 1 n = 4, 10 n = 2 n = 3 CO ...

0 0.5 1 − 3 − 2 − 1 0 1 2 3 Normalized frequency Phase in radian Bessel phase LPF/order n = 1, 2, 3, 4, 10 n = 3 n = 2 n = 1 n = ...

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