LookupTable2D
This block approximates a non-linear function using interpolation on data provided as a "2D-table".
Library
Activate/LookupTables
Description
The LookupTable2D block approximates a non-linear function using interpolation on data provided as a "2D-table". This is bi-dimensional and the table is then defined by specifying two vectors (x and y) of size m and n, and a "2D-table", a matrix of size m*n. Output of the block is the approximation of the block input using the selected interpolation method.
Each input can be either scalar, vector or matrix.
Parameters
| Name | Label | Description | Data Type | Valid Values |
|---|---|---|---|---|
xx | Row index input values | Vector of length m. | Vector | |
yy | Column index input values | Vector of length n. | Vector | |
zz | Table data | Matrix of size m x n. | Matrix | |
Method | Interpolation method | Interpolation method. Default: bilinear interpolation. | String | 'Bilinear |
DoOutside | Result outside the table range | Action to be taken with the result outside of the table range. | String | 'Zero' |
EventGen | Apply zero crossings | Enable this parameter to detect the zero crossings. Default is on. | Scalar | 0 |
externalActivation | External activation | Specifies whether the block receives an external activation or inherits its activation through its regular input ports. When External Activation is selected, an additional activation port is added to the block. By default, external activation is not selected. | Number | 0 |
Ports
| Name | Type | Description | IO Type | Number |
|---|---|---|---|---|
Port 1 | explicit | output | 1 | |
r | explicit | input | 1 | |
c | explicit | input | 2 | |
Port 4 | activation | input | externalActivation |
Advanced Properties
| Name | Value | Description |
|---|---|---|
always active | yes | Depends on block parameters |
direct-feedthrough | yes | |
zero crossing | no | Depends on block parameters. |
mode | no | |
continuous-time state | no | |
discrete-time state | no |