Signal Processing Toolbox

Filter Order

You have two mutually exclusive options for determining the filter order when you design an equiripple filter:

• Minimum order: The filter design method determines the minimum order filter.
• Specify order: You enter the filter order in a text box.

Select the Minimum order radio button for this example.

Note that filter order specification options depend on the filter design method you choose. Some filter methods may not have both options available.

Setting the Filter Design Specifications

Computing the Filter Coefficients