Digital Signal Processing Reference
In-Depth Information
Solution The PSD of the signal Y is
S YY ðoÞ¼S Y 1 Y 1 ðoÞþS Y 22 Y 22 ðoÞ:
(7.200)
The estimated PSDs are shown in Figs. 7.45 - 7.47 .
Figure 7.48 shows all estimated PSDs in one plot.
Signal y1
10 3
10 2
10 1
10 0
10 −1
10 −2
10 −3
10 −4
−1
−0.5
0
0.5
1
ω / π
Fig. 7.45 Estimated PSD of signal y 1 in Exercise M.7.7
Signal y22
10 3
10 2
10 1
10 0
10 −1
10 −2
10 −3
10 −4
10 −5
−1
−0.5
0
0.5
1
ω
/
π
Fig. 7.46 Estimated PSD of signal y 22 in Exercise M.7.7
 
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