YOKOGAWA DL750 - Page 714

App-41
IM 701210-06E
Appendix
App
• IIR (Butterworth) Band-pass: Pass-band Width 15%
-80
-60
-40
-20
0
IIR (Butterworth) Band-pass Frequency Characteristics Pass-band Width 15%
30%
25%20%15%10%7.6%
dB
0 f 0.1 f 0.2 f 0.3 f 0.4 f 0.5 f
0
50
100
150
200
250
s/T
s
IIR (Butterworth) Band-pass Group Delay Characteristics (1) Pass-band Width 15%
7.6%
0 f 0.1 f 0.2 f 0.3 f 0.4 f 0.5 f
0
2
4
6
8
10
12
14
s/Ts
IIR (Butterworth) Band-pass Group Delay Characteristics (2) Pass-band Width 15%
10%
15%
20%
25%
30%
0 f 0.1 f 0.2 f 0.3 f 0.4 f 0.5 f
(f: sampling frequency [Hz])
Appendix 6 DSP Channel Computation (Optional)