sos2tf

(/tools/hpmatlab/toolbox/signal/sos2tf.m)

Function Synopsis

[b,a] = sos2tf(sos)

Help text

SOS2TF	2nd-order sections to transfer function linear system model conversion
	[B,A] = SOS2TF(SOS) returns the numerator and denominator coefficients 
	B and A of the discrete-time linear 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, SOS2ZP, SOS2SS, SS2SOS

Cross-Reference Information

conv           /tools/hpmatlab/toolbox/matlab/datafun/conv.m
else           /tools/hpmatlab/toolbox/matlab/lang/else.m
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
size           /tools/hpmatlab/toolbox/matlab/general/size.m