Calculates the filter coefficients for a second order highpass and performs filtering on input signal.
Second order transfer function used:
H(z) = (b0.z² + b1.z + b2) / (z² + a1.z + a2)
Inports
In: Input In(k)
Outports
Out: Output Out(k)
Mask Parameters
characteristic: The filter characteristic is one of Butterworth, Chebyshev I, Chebyshev II (also known as inverse Chebyshev) or Bessel.
fc: Cut-off frequency in Hz
rp: The passband ripple is only used and verified with 'Chebyshev I' filters.
Must be a positive number.
rs: The stopband ripple is only used and verified with 'Chebyshev II' filters.
Must be a positive number.
ts_fact: Multiplication factor of base sampling time (in integer format).