November 2010
Intermediate to advanced
288 pages
8h 34m
English
The block diagram in Figure 49.1 represents the direct form implementation for an infinite impulse response (IIR) digital filter. The filter consists of an all-zero section followed by an all-pole section. At time n, the all-zero section computes a weighted sum of the inputs from times n – M through n. To this result, the all-pole section adds a weighted sum of the previous outputs from times n – N through n – 1. The usual mathematical characterizations for an IIR filter are summarized in Math Boxes 49.1 and 49.2.
Figure 49.1. Block diagram for IIR filter

The difference equation for the ...
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