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DLR
Discrete transfer function
Block Screenshot
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Description
This block realizes a SISO linear system represented by its rational transfer function (in the symbolic variable z). The rational function must be proper.
Parameters
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Numerator (z)
This parameter sets the numerator of the transfer function.
This must be a polynomial inz .
Properties : Type 'pol' of size 1.
In the provided expression, any subexpression being an exponent given either by a variable (of the context) whose name is more than 1-character long, or by an expression (not a literal integer) must end with a space to be correctly displayed on the block's icon. This constrain has no consequence on the computational validity of the expression. Examples: "z^12+1", "z^ +12+1", "z^+ 12+1" are all displayed as "z^{12}+1", while "1+z^ab+z^2" will be displayed as "1+z^{ab+z^2}" (but will be well computed as1 + z^ab + z^2
). To make it well displayed, "1+z^ab +z^2" will have to be entered (for instance). As well, "z^(ab+1) + 2" will have to be entered, instead of "z^(ab+1)+2".Denominator (z)
This parameter sets the denominator of the transfer function.
This must be a polynomial inz .
Properties : Type 'pol' of size 1.
Take care about multichar exponents (see
Numerator
).
Default properties
always active: no
direct-feedthrough: no
zero-crossing: no
mode: no
regular inputs:
- port 1 : size [1,1] / type 1
regular outputs:
- port 1 : size [1,1] / type 1
number/sizes of activation inputs: 1
number/sizes of activation outputs: 0
continuous-time state: no
discrete-time state: yes
object discrete-time state: no
name of computational function: dsslti4
Interfacing function
SCI/modules/scicos_blocks/macros/Linear/DLR.sci
Computational function
SCI/modules/scicos_blocks/src/c/dsslti4.c (Type 4)
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