Filter Design Toolbox

Importing and Exporting Quantized Filters

When you import a quantized filter into FDATool, or export a quantized filter from FDATool to your workspace, the import and export functions use objects and you specify the filter as a variable. This contrasts with importing and exporting nonquantized filters, where you select the filter structure and enter the filter numerator and denominator for the filter transfer function.

You have the option of exporting quantized filters to your MATLAB workspace, exporting them to text files, or exporting them to MAT-files.

This section includes:

• To Import Quantized Filters
• To Export Quantized Filters

For general information about importing and exporting filters in FDATool, refer to "Filter Design and Analysis Tool" section in your Signal Processing Toolbox User's Guide.

FDATool imports quantized filters having the following structures:

• Direct form I
• Direct form II
• Direct form I transposed
• Direct form II transposed
• Direct form symmetric FIR
• Direct form antisymmetric FIR
• Lattice allpass
• Lattice AR
• Lattice MA minimum phase
• Lattice MA maximum phase
• Lattice ARMA
• Lattice coupled-allpass
• Lattice coupled-allpass power complementary
• State-space

To Enter Scale Values for Quantized Filters

To Import Quantized Filters