sos2zp

(/tools/hpmatlab/toolbox/signal/sos2zp.m)

Function Synopsis

[z,p,k] = sos2zp(sos)

Help text

SOS2ZP	Second-order sections to zero-pole-gain linear system model conversion
	[Z,P,K] = SOS2ZP(SOS) returns the zeros Z, poles P and gain K of the
	system given by SOS in second-order sections form.  SOS is an L by 6 
	matrix which contains the coefficients of each second-order section
	in its rows:
	    SOS = [ b01 b11 b21  a01 a11 a21 
	            b02 b12 b22  a02 a12 a22
	            ...
	            b0L b1L b2L  a0L a1L a2L ]
	The system transfer function is the product of the second-order transfer
	functions of the sections.  Each row of the SOS matrix describes
	a 2nd order transfer function as
	    b0k +  b1k z^-1 +  b2k  z^-2
	    ----------------------------
	    a0k +  a1k z^-1 +  a2k  z^-2
	where k is the row index.

	See also ZP2SOS, SOS2TF, SOS2SS, SS2SOS

Cross-Reference Information

end            /tools/hpmatlab/toolbox/matlab/lang/end.m
error          /tools/hpmatlab/toolbox/matlab/lang/error.m
for            /tools/hpmatlab/toolbox/matlab/lang/for.m
i              /tools/hpmatlab/toolbox/matlab/elmat/i.m
if             /tools/hpmatlab/toolbox/matlab/lang/if.m
input          /tools/hpmatlab/toolbox/matlab/lang/input.m
nargin         /tools/hpmatlab/toolbox/matlab/elmat/nargin.m
nargout        /tools/hpmatlab/toolbox/matlab/elmat/nargout.m
prod           /tools/hpmatlab/toolbox/matlab/datafun/prod.m
size           /tools/hpmatlab/toolbox/matlab/general/size.m