Design and implementation of MDFT filter bank based multicarrier modulation systems

Author(s):  
Shao Kai ◽  
Zhang Weiwei ◽  
Wang Guangyu
2013 ◽  
Vol 694-697 ◽  
pp. 2003-2008
Author(s):  
Ming Hong Dai

The paper introduces Laplace pyramid, Ridgelet and Curvelet principle, structure and methods, and their denoising experimental studies. It also introduces the traditional direction filter of principle, structure and methodology, and the simulation experiments show that its image denoising PSNR is slightly lower than wavelet but denoising image visual quality is better than former. To that end, proposed a new direction filters that uniform direction filter banks and non-uniform direction filters, proved filter passband condition and related design and implementation issues were discussed. nonlinear experiment shows that the new direction filter bank was better than the wavelet.


Telecom IT ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 55-66
Author(s):  
I. Grishin ◽  
A. Kalinkina

This article provides an overview of the technologies for generating radio signals, such as orthogonal frequency division multiplexing and its modifications: universal filtered multicarrier and filter bank multi-carrier currently used in wireless communication networks. Subject of research: methods of multicar-rier modulation. Main results: Overview of modern methods of forming multicarrier signals in radio communication systems. A number of computational experiments have been performed to compare the characteristics of signal localization, peak-to-average ratios and spurious emissions. Practical implica-tions: the results can be used in choosing the type of modulation in the case of the development of digi-tal radio communication systems.


2015 ◽  
Vol 6 (2) ◽  
pp. 15-28 ◽  
Author(s):  
Kawser Ahammed ◽  
Md. Ershadullah ◽  
Md. Rakebul Islam Heru ◽  
Saiful Islam ◽  
Parvez Sazzad Z.M

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