Multirate approximately linear-phase IIR filter structures for arbitrary bandwidths

2003 ◽  
Author(s):  
H. Johansson
Keyword(s):  
Linear Phase ◽  
Iir Filter ◽  
Filter Structures

scholarly journals Analysis of half-band approximately linear phase IIR filter realization structure in MATLAB

2015 ◽  
Vol 28 (4) ◽  
pp. 611-623 ◽  
Author(s):  
Aleksandar Radonjic ◽  
Jelena Certic
Keyword(s):  
Fixed Point ◽  
Detailed Analysis ◽  
Filter Design ◽  
Linear Phase ◽  
Parallel Connection ◽  
Iir Filter ◽  
Filter Structure ◽  
Band Filter ◽  
Design Algorithms

In this paper a detailed analysis of an atypical filter structure in MATLAB Filter Design and Analysis (FDA) Tool is presented. As an example of atypical filter structure, the IIR half-band filter with approximately linear phase realized as a parallel connection of two all-pass branches was examined. We compare two types of those filters obtained by two different design algorithms. FDA tool was used for the experiment because different effects of the fixed point implementation can be simulated easily. One of the goals of this paper was to compare results obtained by two different design algorithms. In addition, different realizations of the filter structure based on the parallel connection of two all-pass branches were examined.

scholarly journals Area- and Power-Efficient Nearly-Linear Phase Response IIR Filter by Iterative Convex Optimization

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 22952-22965
Author(s):  
Gelei Deng ◽  
Jiajia Chen ◽  
Jiaxuan Zhang ◽  
Chip-Hong Chang
Keyword(s):  
Convex Optimization ◽  
Phase Response ◽  
Linear Phase ◽  
Power Efficient ◽  
Iir Filter
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