Optimum multiplierless compensators for sharpened cascaded‐integrator‐comb decimation filters

2018 ◽  
Vol 54 (16) ◽  
pp. 971-972 ◽  
Author(s):  
A. Dudarin ◽  
G. Molnar ◽  
M. Vucic
Keyword(s):  
Decimation Filters

Design of Compensators for Comb Decimation Filters

2018 ◽  
pp. 6043-6056
Author(s):  
Gordana Jovanovic Dolecek
Keyword(s):  
Pass Band ◽  
Trade Off ◽  
Decimation Filters

This article presents different methods proposed to compensate for the comb pass band droop. Two main groups of methods are elaborated: Methods that require multipliers, and multiplier less methods. The width of pass band depends on the decimation factor and the decimation of the stage which follows the comb decimation stage. In that sense the compensation can be considered as a one in the wideband, or in the narrowband. There exit methods which can be used for both: wideband and narrowband compensations (with different parameters). Usually there is a trade-off between the compensator complexity and the provided quality of compensation.

scholarly journals Optimal Sharpening of Compensated Comb Decimation Filters: Analysis and Design

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
David Ernesto Troncoso Romero ◽  
Massimiliano Laddomada ◽  
Gordana Jovanovic Dolecek
Keyword(s):  
Computational Complexity ◽  
Performance Improvement ◽  
Low Complexity ◽  
Lower Degree ◽  
Magnitude Response ◽  
Scheme Design ◽  
Analysis And Design ◽  
Decimation Filters ◽  
Comb Filters ◽  
Stopband Attenuation

Comb filters are a class of low-complexity filters especially useful for multistage decimation processes. However, the magnitude response of comb filters presents a droop in the passband region and low stopband attenuation, which is undesirable in many applications. In this work, it is shown that, for stringent magnitude specifications, sharpening compensated comb filters requires a lower-degree sharpening polynomial compared to sharpening comb filters without compensation, resulting in a solution with lower computational complexity. Using a simple three-addition compensator and an optimization-based derivation of sharpening polynomials, we introduce an effective low-complexity filtering scheme. Design examples are presented in order to show the performance improvement in terms of passband distortion and selectivity compared to other methods based on the traditional Kaiser-Hamming sharpening and the Chebyshev sharpening techniques recently introduced in the literature.

Design of superconducting single flux quantum decimation filters

2001 ◽  
Vol 11 (1) ◽  
pp. 517-520 ◽  
Author(s):  
H. Hasegawa ◽  
T. Hashimoto ◽  
S. Nagasawa ◽  
H. Suzuki ◽  
K. Miyahara ◽  
...  
Keyword(s):  
Flux Quantum ◽  
Decimation Filters
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