5.3.5.3.1.
Filter Configuration
The four filters all have the same basic 2nd order IIR structure. They can be configured according to requirements (to access
the configuration menu for each filter, click on the Config Filter link underneath each block)
Users can choose from the following types:
•
Lag
: The filter consists of a real pole and a real zero. The frequency of the pole and zero are entered, and have to be
positive or zero.
•
Bq
: This is a standard biquad filter, with a pair of complex combined zeros and a pair of complex combined poles. The
parameters that must be specified are:
• Frequency of the zero
• Damping of the zero
• Frequency of the pole
• Dampening of the pole
The frequencies must be positive or zero. The damping factors must be between -1 and 1.
•
Pole
: The filter has a single real pole. The parameter to be specified is the pole frequency, which must be positive or zero.
•
DbPole
: The filter has two complex combined poles. The parameters that must be specified are:
• Frequency of the pole
• Dampening of the pole
The frequency must be positive. The damping factor must be between -1 and 1.
•
Dircoef
: Enter the coefficients of the filter numerator and denominator (rarely used)
• Filter 4 has also a Notch Filter
INFORMATION
The parameters must be entered according to an established order:
INFORMATION
Keep the filter deactivated until all other filter parameters have been entered
1. Damping
2. Frequency
3. Type of filter
MAR2-E-191
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