BPF – Band-pass filter

Block SymbolLicensing group: STANDARD

Function Description
The BPF implements a second order filter in the form

F_{s} = \frac{2 ξ a s}{a^{2} s^{2} + 2 ξ a s + 1},

where $a$ and $ξ$ are are the block parameters fm and xi respectively. The fm parameter defines the middle of the frequency transmission band and xi is the relative damping coefficient .

If $ISSF = on$ , then the state of the filter is set to the steady value at the block initialization according to the input signal u.

This block propagates the signal quality. More information can be found in the 1.4 section.

Input

u	Input signal to be filtered	Double (F64)
R1	Block reset	Bool
HLD	Hold	Bool

Parameter

fm	Peak frequency [Hz] $⊙$ 1.0	Double (F64)
xi	Relative damping coefficient $⊙$ 0.707	Double (F64)
ISSF	Steady state at start-up	Bool
	off .. Zero initial state on ... Initial steady state

Output

y	Filtered output signal	Double (F64)

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