Convert digital filter second-order section data to transfer function form.
Usage
sos2tf(sos, g = 1)
Value
An object of class "Arma" with the following list elements:
b
moving average (MA) polynomial coefficients
a
autoregressive (AR) polynomial coefficients
Arguments
sos
Second-order section representation, specified as an nrow-by-6
matrix, whose rows contain the numerator and denominator coefficients of
the second-order sections: sos <- rbind(cbind(B1, A1), cbind(...),
cbind(Bn, An)), where B1 <- c(b0, b1, b2), and A1 <- c(a0,
a1, a2) for section 1, etc. The b0 entry must be nonzero for each section.
g
Overall gain factor that effectively scales the output b
vector (or any one of the input Bi vectors). Default: 1.