Digital Signal Processing Reference
In-Depth Information
Signal y=y1+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. 7.47 Estimated PSD of signal y in Exercise M.7.7
Signal y1
10 5
10 0
10 −5
−1
−0.5
0
0.5
1
ω
/
π
Signal y22
10 5
10 0
10 −5
−1
−0.5
0
0.5
1
ω / π
Signal y=y1+y22
10 5
10 0
10 −5
−1
−0.5
0
0.5
1
ω / π
Fig. 7.48 Estimated PSDs in Exercise M.7.7
 
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