YOKOGAWA DL750 - Page 712

App-39
IM 701210-06E
Appendix
App
Appendix 6 DSP Channel Computation (Optional)
• IIR (Butterworth) Band-pass: Pass-band Width 5%
-80
-60
-40
-20
0
IIR (Butterworth) Band-pass Frequency Characteristics Pass-band Width 5%
30%
25%20%15%10%5%2.6%
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/Ts
IIR (Butterworth) Band-pass Group Delay Characteristics (1) Pass-band Width 5%
2.6%
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
16
18
s/T
s
IIR (Butterworth) Band-pass Group Delay Characteristics (2) Pass-band Width 5%
5%
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])