Digital-filter frequency response

1969 ◽  
Vol 5 (10) ◽  
pp. 210-211
Author(s):  
A.C. Davies
Keyword(s):  
Frequency Response ◽  
Digital Filter ◽  
Filter Frequency

Transfer Function Coefficients Calculation of the High Pass Frequency-Dependent Second-Order Components Using Special Phase Frequency Response Values

2021 ◽  
Vol 105 ◽  
pp. 161-166
Author(s):  
Hanna Ukhina ◽  
Ivan Afanasyev ◽  
Valerii Sytnikov ◽  
Oleg Streltsov ◽  
Pavel Stupen
Keyword(s):  
Transfer Function ◽  
Frequency Response ◽  
Digital Filter ◽  
Second Order ◽  
Robotic Systems ◽  
Frequency Dependent ◽  
Digital Frequency ◽  
Order Components ◽  
High Pass

In this work, adjustable second-order digital frequency-dependent components that are used in robotic systems are considered. The obtained approximations of the PFR dependence on the ripple level allow us to find the digital filter transfer function denominator coefficients' values that result contributes to a more rapid rearrangement of their responses in robotic systems.

SINGLE FILTER FREQUENCY-RESPONSE MASKING FIR FILTERS

2003 ◽  
Vol 12 (05) ◽  
pp. 601-630 ◽  
Author(s):  
OSCAR GUSTAFSSON ◽  
HÅKAN JOHANSSON ◽  
LARS WANHAMMAR
Keyword(s):  
Frequency Response ◽  
Filter Design ◽  
Narrow Band ◽  
Wide Band ◽  
Fir Filters ◽  
Band Frequency ◽  
Filter Structure ◽  
Frequency Response Masking ◽  
Filter Structures ◽  
Filter Frequency

In this work filter structures that decrease the required number of multipliers and adders for implementation of linear-phase FIR filters using frequency-response masking techniques are introduced. The basic idea of the proposed structures is that identical subfilters are used. This leads to the same arithmetic structure can be multiplexed in the implementation, reducing the number of required multipliers and adders. The subfilters are mapped using the folding transformation to obtain an area-efficient time-multiplexed (or pipeline/interleaved) implementation. Both narrow-band and wide-band frequency-response masking as well as arbitrary bandwidth frequency-response masking techniques are considered. The filter design is discussed and for each filter structure the limits on the specifications are derived. Designed examples show the usefulness of the proposed structures.

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