User`s guide

109
Phase (degrees) in
Frequency Domain
Figure 29 Fourier transformation of periodic sawtooth function without
offset and time shift.
Applying Fourier transform to the periodic square wave function used in section 1
yield results in Figure 30. Comparing the results in Figure 31 with Figure 30, we can see that a
time shift leads to a shift in phase, but have no impact on magnitude.
Time Domain:
T=6 sec
Magnitude in Frequency
Domain
Phase (degrees) in
Frequency Domain
Figure 30 Fourier transform result of periodic square wave.
-90
-60
-30
0
30
60
90
0.0 5.0 10.0 15.0
-1.5
-1
-0.5
0
0.5
1
1.5
0 2 4 6
0
0.5
1
1.5
0.0 1.0 2.0 3.0 4.0 5.0
Frequency (Hz)
0
15
30
45
60
75
90
0.0 5.0 10.0 15.0 20.0 25.0 30.1 35.1 40.1