Other Forms
Other forms include:
- Direct Form I and II transpose
- Series/cascade lower (typical second) order subsections
- Parallel lower (typical second) order subsections
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- Continued fraction expansion
- Lattice and ladder
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- One, two and three-multiply lattice forms
- Three and four-multiply normalized ladder forms
- ARMA structures
- State-space structures:
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- optimal (in the minimum noise sense): parameters
- block-optimal and section-optimal: parameters
- input balanced with Givens rotation: parameters
- Coupled forms: Gold Rader (normal), State Variable (Chamberlin), Kingsbury, Modified State Variable, Zölzer, Modified Zölzer
- Wave Digital Filters (WDF)
- Agarwal-Burrus (1AB and 2AB)
- Harris-Brooking
- ND-TDL
- Multifeedback
- Analog-inspired forms such as Sallen-key and state variable filters
- Systolic arrays
Read more about this topic: Digital Filter, Filter Realization
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