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Text File  |  1989-01-24  |  1007 b   |  34 lines
  1. 2 TRANSIIR
  2.  
  3.          Name: TRANSIIR
  4.          Type: Assembler Program
  5.       Version: 1.0
  6.  Date Entered: 27-May-88
  7.   Last Change: 27-May-88
  8.  
  9.  Description: Implements the Transposed IIR Filter
  10.  
  11.   The cascaded transpose IIR filter has a filter section:
  12.  
  13.  
  14.       x  --------------bi0---->(+)--------------------> y
  15.                   |             ^            |
  16.                   |             | w1         |
  17.                   |            1/z           |
  18.                   |             |            |
  19.                   |----bi1---->(+)<---ai1----|
  20.                   |             ^            |
  21.                   |             | w2         |
  22.                   |            1/z           |
  23.                   |             |            |
  24.                   |----bi2---->(+)<---ai2----|
  25.  
  26.   The filter equations are:
  27.       y  = x*bi0 + w1
  28.       w1 = x*bi1 + y*ai1 + w2
  29.       w2 = x*bi2 + y*a2
  30.  
  31.  The program TRANSIIR.ASM implements a cascade of two second order
  32.  transpose sections.
  33.  
  34.