Bosch C 60 - Page 88

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 Linear phase – no signal distortion
 Latency compensation – no filter delay in recorded data
 Filtering is (smart) averaging over several samples
 Filtered signal is delayed with respect to real time signal
 C 60 filters have constant, frequency independent delay
 Delay (e.g. 22 samples @ 10ms) is corrected during recording
 No delay filtered vs. unfiltered in recorded data
 Correction is (of course) not possible for real time data (display, online, PWM out)
 Use filtered data for recording, use unfiltered data for realtime
C 60 Analog and Frequency Inputs
Internal | BEG/EMS1 CsM | 6/4/2010 | © Bosch Engineering GmbH 2009. All rights reserved, also regarding any disposal, exploitation,
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Analog Inputs – Digital Filter Details
0 500 1000 1500 2000 2500 3000
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
Abt ast werte (ro h)
Wert
10000Hz Abtastrate
0 5 10 15 20 25 30
-1.5
-1
-0.5
0
0.5
1
1.5
Abt ast werte (gefilte rt)
Wert
100Hz Abtastrate
0 5 10 15 20 25 30
-1.5
-1
-0.5
0
0.5
1
1.5
Abta stw erte (dez imiert )
Wert
100Hz A btastrat e
Sensor signal with noise
Recorded signal 100Hz
(unfiltered)
Recorded signal 100Hz
(filtered)