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Prelookup and Interpolation Blocks

The following examples show the benefits of usingPrelookupandInterpolation Using Prelookupblocks.

Action Benefit Example

Use an index search to relate inputs to table data, followed by an interpolation and extrapolation stage that computes outputs

允许重用索引搜索结果中查找data in multiple tables, which reduces simulation time

For more information, seeUsing the Prelookup and Interpolation Blocks.

Set breakpoint and table data types explicitly

Lowers memory required to store:

  • Breakpoint data that uses a smaller type than the input signal

  • Table data that uses a smaller type than the output signal

For more information, seeSaving Memory in Prelookup and Interpolation Blocks by Using Smaller Data.

Provides easier sharing of:

  • Breakpoint data amongPrelookupblocks

  • Table data amongInterpolation Using Prelookupblocks

For more information, seeSharing Parameters in Prelookup and Interpolation Blocks(Fixed-Point Designer).

Enables reuse of utility functions in the generated code

For more information, seeShared Utility Functions for Prelookup Blocks(Fixed-Point Designer).

Set the data type for intermediate results explicitly

Enables use of higher precision for internal computations than for table data or output data

For more information, seeHigh Precision Calculations in Interpolation Block(Fixed-Point Designer).

See Also

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