scholarly journals A Study on the Sound Quality Improvement Using the Equal Compensation Filter in Bark-scale for the Cross-talk Cancellation

2004 ◽  
Vol 11B (3) ◽  
pp. 345-352
2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Zhiliang Zhang ◽  
Ying Shen ◽  
Shihai Shao ◽  
Wensheng Pan ◽  
Youxi Tang

An improved cross talk cancelling digital predistortion (ICTC-DPD) with novel estimating technique and decoupling technique is proposed, which can be used to compensate the cross talk with possible delay and compensate the nonlinearity with memory effect in MIMO transmitting channels. The cross talk cancellation ability, which is defined as the cross talk power ratio before cancellation to after cancellation in decibel, is analyzed and its closed-form expression is derived. Simulation results prove that the ICTC-DPD can achieve higher cross talk estimation accuracy and higher cross talk cancellation ability than the original CTC-DPD. Experimental results show that the ICTC-DPD can achieve 20 dB cross talk cancellation for two channels transmitting 20 MHz LTE signals.


2018 ◽  
Vol 18 (18) ◽  
pp. 1567-1571
Author(s):  
Anna Lucia Tornesello ◽  
Luigi Buonaguro ◽  
Maria Lina Tornesello ◽  
Franco M. Buonaguro

2017 ◽  
Vol 33 (3) ◽  
pp. 315-324 ◽  
Author(s):  
Chang Liu ◽  
Dong-Ying Yan ◽  
Xuan Tan ◽  
Zhuo Ma ◽  
Can Wang ◽  
...  

2021 ◽  
Vol 1 (1) ◽  
pp. 55-63
Author(s):  
NingJie Hao ◽  
Xiaoxiao Zou ◽  
Xiaoxia Lin ◽  
Ruqiong Cai ◽  
Wenjun Xiao ◽  
...  

Rheumatology ◽  
2021 ◽  
Author(s):  
Sicília Rezende Oliveira ◽  
José Alcides A de Arruda ◽  
Ayda Henriques Schneider ◽  
Valessa Florindo Carvalho ◽  
Caio Machado ◽  
...  

Abstract Objectives Neutrophil extracellular traps (NETs) play a role in the pathogenesis of periodontitis and rheumatoid arthritis (RA). However, it remains poorly understood whether NETs participate in the cross-talk between periodontitis and RA. Herein, we investigated the production of NETs in individuals with periodontitis and RA and its association with clinical parameters. The impact of periodontal therapy on RA and NET release was also assessed. Methods The concentration of NETs and cytokines was determined in the saliva and plasma of individuals with early RA (n = 24), established RA (n = 64), and individuals without RA (n = 76). The influence of periodontitis on the production of NETs and cytokines was also evaluated. Results Individuals with early RA had a higher concentration of NETs in saliva and plasma than individuals with established RA or without RA. Periodontitis resulted in an increase in the concentration of NETs of groups of individuals without RA and with early RA. The proportion of individuals with high concentrations of IL-6, IL-10 and GM-CSF was higher among individuals with periodontitis than among individuals without periodontitis. The concentrations of TNF-α, IL-6, IL-17/IL-25, and IL-28A were particularly high in individuals with early RA. Worse periodontal clinical parameters, RA onset and RA activity were significantly associated with circulating NETs. Periodontal therapy was associated with a reduction in the concentration of NETs and inflammatory cytokines and amelioration in periodontitis and RA. Conclusion This study reveals that NETs are a possible link between periodontitis and RA, with periodontal therapy resulting in a dramatic switch in circulating NET levels.


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