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Design Digital Filters

Fixed-point digital filter design for embedded processors

Examples and How To

Direct Form II

In general, a direct form realization refers to a structure where the coefficients of the transfer function appear directly as Gain blocks.

Series Cascade Form

In the canonical series cascade form, the transfer function is written as a product of first-order and second-order transfer functions.

Parallel Form

In the canonical parallel form, the transfer function is expanded into partial fractions.

Concepts

Canonical Forms

For a given digital filter, the canonical forms describe a set of fundamental operations for the processor.

Realizing Fixed-Point Digital Filters

Provides a brief overview of creating filters using fixed-point Simulink® blocks

Targeting an Embedded Processor

Describes issues that arise when targeting a fixed-point design for use on an embedded processor

Featured Examples