Transfer Fcn Real Zero
Implement discrete-time transfer function that has real zero and no pole
- Library:
Simulink / Discrete
Description
The Transfer Fcn Real Zero block implements a discrete-time transfer function that has a real zero and effectively no pole.
Ports
Input
Port_1 — Input signal
scalar | vector
Input signal to the discrete-time transfer function algorithm.
Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | fixed point
Output
Port_1 — Output signal
scalar | vector
Output signal that is the discrete-time transfer function with a real zero and effectively no pole of the input signal.
Data Types: single | double | int8 | int16 | int32 | int64 | uint8 | uint16 | uint32 | uint64 | fixed point
Parameters
Zero (in Z plane) — Zero
0.75 (default) | scalar
Specify the zero in the Z plane.
Programmatic Use
Block Parameter:
ZeroZ |
| Type: character vector |
| Value: real scalar |
Default:
'0.75' |
Initial condition for previous input — Initial condition for previous input
0.0 (default) | scalar
Specify the initial condition for the previous input.
Programmatic Use
Block Parameter:
ICPrevInput |
| Type: character vector |
| Value: real scalar |
Default:
'0.0' |
Input processing — Specify sample- or frame-based processing
Elements as channels (sample based) (default) | Columns as channels (frame based)
Specify whether the block performs sample- or frame-based processing:
Columns as channels (frame based)— Treat each column of the input as a separate channel (frame-based processing).Note
Frame-based processing requires a DSP System Toolbox™ license.
For more information, see Sample- and Frame-Based Concepts (DSP System Toolbox).
Elements as channels (sample based)— Treat each element of the input as a separate channel (sample-based processing).
Use Input processing to specify whether the block performs
sample- or frame-based processing. The block accepts frame-based signals for the input
u. All other input signals must be sample-based.
| Input Signal u | Input Processing Mode | Block Works? |
|---|---|---|
| Sample based | Sample based | Yes |
| Frame based | No, produces an error | |
| Sample based | Frame based | Yes |
| Frame based | Yes |
For more information about these two processing modes, see Sample- and Frame-Based Concepts (DSP System Toolbox).
Programmatic Use
Block Parameter:
InputProcessing |
| Type: character vector |
Values: 'Columns as channels
(frame based)' | 'Elements as channels (sample
based)' |
Default: 'Elements as channels
(sample based)' |
Integer rounding mode — Rounding mode for fixed-point operations
Floor (default) | Ceiling | Convergent | Nearest | Round | Simplest | Zero
Specify the rounding mode for fixed-point operations. For more information, see Rounding (Fixed-Point Designer).
Block parameters always round to the nearest representable value. To control the rounding of a block parameter, enter an expression using a MATLAB® rounding function into the mask field.
Programmatic Use
Block Parameter:
RndMeth |
| Type: character vector |
Values:
'Ceiling' | 'Convergent' | 'Floor' | 'Nearest' | 'Round' | 'Simplest' |
'Zero' |
Default:
'Floor' |
Saturate to max or min when overflows occur — Method of overflow action
off (default) | on
When you select this check box, overflows saturate to the maximum or minimum value that the data type can represent. Otherwise, overflows wrap.
When you select this check box, saturation applies to every internal operation on the block, not just the output or result. In general, the code generation process can detect when overflow is not possible. In this case, the code generator does not produce saturation code.
Programmatic Use
Block Parameter:
DoSatur |
| Type: character vector |
Values:
'off' | 'on' |
Default:
'off' |