This function converts digital filter with coefficients b and a to analog, conserving impulse response.
[b, a] = impinvar (b, a) [b, a] = impinvar (b, a, fs) [b, a] = impinvar (b, a, fs, tol)
real or complex valued scalar or vector
real or complex valued scalar or vector, order should be greater than b
real or complex value, default value 1Hz
real or complex value, default value 0.0001
This is an Octave function. This function converts digital filter with coefficients b and a to analog, conserving impulse response. This function does the inverse of impinvar.
b = 0.0081000 a = [2.0000000, 0.56435378, 0.4572792, 0.00705544, 0.091000] [ay, by] = invimpinvar(b,a,10) ay = -1.6940e-16 4.6223e+00 -4.5210e+00 7.2880e+02 by = Columns 1 through 4: 1.0000e+00 3.0900e+01 9.6532e+02 1.2232e+04 Column 5: 1.1038e+05 |  |  |