new simulink block

How can I create a new simulink block??

For example....how was the path loss block created??

Alton

[Arnaud Miege]

Can you elaborate on your question? Which path loss block? In which model?

[Fangjun Jiang]

what is or what do you mean a "path loss block"?

Answer 1

[Kaustubha Govind]

There are several ways to create a custom block in Simulink. The most common ones being:

1. Implement the block algorithms using Simulink library blocks, wrap them inside a subsystem and mask it.
2. Create an S-Function and mask it.
3. Implement the algorithm using an (Embedded) MATLAB Function block

Here is a comparison of the several techniques that can be used: Comparison of Custom Block Functionality.

You can right click on most blocks and select "Look Under Mask" to examine how the block is implemented. (Note: Some native Simulink blocks do not have this option - in which case all implementation details are hidden)