PLECS 2.2 Online Help

2D Look-Up Table

Purpose

Output an approximated two-dimensional function using intrapolation/extrapolation.

Library

Signals & Systems

Description

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The 2D Look-Up Table block maps two continuous input signals to a continuous output signal. You define the mapping function by specifying two vectors of input values and a matrix of output values. The input vector x   corresponds to the rows of the output matrix, the input vector y  , to the columns.

The output value is interpolated or extrapolated from the block parameters using the technique described for the 1D Look-Up Table block.

Parameters and Dialog Box

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Vector of input values x
The vector of input values x  . This vector must be the same size as the number of rows in the output matrix and monotonically increasing. It should not contain more than three identical values.
Vector of input values y
The vector of input values y  . This vector must be the same size as the number of columns in the output matrix and monotonically increasing. It should not contain more than three identical values.
Matrix of output values f(x,y)
The matrix containing the output values f(x,y)  . The number of rows and columns must match the size of the input vectors.

Probe Signals

Input x
The block input signal x  .
Input y
The block input signal y  .
Output
The block output signal.