frequency transformation
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2021 ◽  
Author(s):  
Maher Khaliel ◽  
Jianan Wen ◽  
Andreas Prokscha ◽  
Ahmed El-Awamry ◽  
Abdelfattah Fawky ◽  
...  

2021 ◽  
Author(s):  
Andrey Guzhov ◽  
Federico Raue ◽  
Jorn Hees ◽  
Andreas Dengel

Author(s):  
Shaban Habib ◽  
Ishrat Khan ◽  
Muhammad Islam ◽  
Waleed Albattah ◽  
Saleh Mohammed Alyahya ◽  
...  

This paper proposes an analytical design procedure for a particular class of 2D filters, namelyGaussian-shaped, circularly-symmetric FIR filters. We approach both low-pass and band-pass circular filters,which are adjustable in selectivity and peak frequency. The design starts from a given 1D Gaussian prototypefilter, approximated using the Chebyshev series. A frequency transformation is applied to derive the circularfilter. Several design examples are provided for both types of filters. The filters designed through this methodare efficient, their frequency response results in a factored or nested form, convenient for implementation.


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