| Autor: |
Romero, David Ernesto Troncoso, Dolecek, Gordana Jovanovic, Laddomada, Massimiliano |
| Zdroj: |
2012 IEEE 3rd Latin American Symposium on Circuits & Systems (LASCAS); 1/ 1/2012, p1-4, 4p |
| Abstrakt: |
This paper presents an efficient design of comb-based decimation filters extensively used in the first stage of multistage decimation architectures. The contribution of this work is the introduction of a multiplierless Finite Impulse Response (FIR) low-order linear-phase corrector filter to decrease the passband droop while simultaneously improving the attenuation of classical comb filters in the so-called folding bands. Upon using polyphase decomposition, the proposed filters can be operated at a lower rate. The resulting filters feature compensated passband droop and higher folding-band attenuation than traditional comb filters, while require only shift-and-add operations. Comparisons with other architectures in literature are provided to emphasize the main features along with the key design steps of the proposed filters. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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