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Data Quantization in IIR Filters

(Complete Item Description)

Abstract:: Quantization errors in an IIR filter structure are filtered by portions of the structure before reaching the output. The total quantization noise variance at the output is the sum of the variances of the individual filtered quantizer noises as seen at the filter output.

Subject:: Science and Technology
Grade Level:: Post-secondary
Collection:: Connexions

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IIR Filter Structures

(Complete Item Description)

Abstract:: The Direct Forms I and II, the Transpose Form, Parallel Form, and Cascade Form are the most common basic structures for implementing IIR filters.

Subject:: Science and Technology
Grade Level:: Post-secondary
Collection:: Connexions

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Scaling

(Complete Item Description)

Abstract:: Digital filters must be properly scaled to prevent overflow in fixed-point implementations. Scaling by the sum of the absolute value of the impulse response of a filter prevents overflow. However, this is sometimes too conservative in practice, so less stringent rules are often used.

Subject:: Science and Technology
Grade Level:: Post-secondary
Collection:: Connexions

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Signal Processing in Processing: Elementary Filters

(Complete Item Description)

Abstract:: The fundamental filters for 1D and 2D signals are introduced and examples are given in Processing.

Subject:: Science and Technology
Grade Level:: Post-secondary
Collection:: Connexions

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Signal Processing in Processing: Filtri Elementari

(Complete Item Description)

Abstract:: Si illustrano i filtri fondamentali per i segnali 1D e 2D e si forniscono esempi in Processing.

Subject:: Science and Technology
Grade Level:: Post-secondary
Collection:: Connexions

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