User`s guide

Dyadic Synthesis Filter Bank

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asymmetric tree structure generates 2

-2 zero-valued output samples in each

channel before propagating the first synthesized output sample (computed

from the inputs received at t=0).

See “Excess Algorithmic Delay (Tasking Latency)” in Chapter 3 and “The

Simulation Parameters Dialog Box” in the Simulink documentation for more

information about block rates and Simulink’s tasking modes.

Dialog Box

Lowpass FIR filter coefficients

A vector of filter coefficients (descending powers of z) to be shared by all the

lowpass filters in the filter bank.

Highpass FIR filter coefficients

A vector of filter coefficients (descending powers of z) to be shared by all the

highpass filters in the filter bank.

Number of levels

The number of filter bank levels. An n-level asymmetric structure has n+1

inputs; an n-level symmetric structure has 2

inputs.

Tree structure

The structure of the filter bank,

Asymmetric (wavelet) or Symmetric.

References Fliege, N. J. Multirate Digital Signal Processing: Multirate Systems, Filter

Banks, Wavelets. West Sussex, England: John Wiley & Sons, 1994.