PRACTICAL MATLAB® FOR ENGINEERS PRACTICAL MATLAB

82 Practical MATLAB® Applications for Engineers

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5

0

2

4

0

2

4

0

2

4

spline

stairs

f(t)

sinc-reconst

× 10 −^4

× 10 −^4

× 10 −^4

× 10 −^3

× 10 −^3

× 10 −^3

time (sec)

Reconstruction of f(t)

Amplitude

Amplitude

Amplitude

FIGURE 1.68
Reconstruction plots for f(t) of Example 1.16.

8 7 6 5 4 3 2 1

1 1.5 2 2.5

0

0 0.5 3 3.5 4 4.5 5

time (sec) ×^10 −^3

× 10 −^5 error(t) = abs [f(t) -Reconstruction (Sums(sinc))]

magnitude

FIGURE 1.69
Reconstruction plot error for f(t) of Example 1.16.