Acoustic Adaptive Transversal Filter.

1976 ◽  
Author(s):  
R. M. Hays
Keyword(s):  
Transversal Filter ◽  
Adaptive Transversal Filter

Stationary characteristics of an adaptive transversal filter

1981 ◽  
Vol 24 (3) ◽  
pp. 227-233 ◽  
Author(s):  
A. A. Mal'tsev ◽  
E. T. Patronis
Keyword(s):  
Transversal Filter ◽  
Adaptive Transversal Filter

Modeling of Hysteresis in Piezoelectric Actuator Using Linear Play Operator Adaptive Filter

2015 ◽  
Vol 645-646 ◽  
pp. 957-962
Author(s):  
Rui Xiong ◽  
Xiang Dong Liu ◽  
Feng Min Shan
Keyword(s):  
Piezoelectric Actuator ◽  
Adaptive Filter ◽  
Least Mean Square ◽  
Filter Model ◽  
Experiment Platform ◽  
Transversal Filter ◽  
Hysteresis Modeling ◽  
Least Mean Square Algorithm ◽  
Play Operator ◽  
Adaptive Transversal Filter

Piezoelectric actuator (PEA) is widely applied in micro/nanopositioning system. However, its inherent hysteresis limits its application. Modeling of hysteresis plays an important role in solving this problem. Linear play operators (LPO) adaptive hysteresis model is introduced in this paper. LPO operators are used to replace delay operators of adaptive transversal filter to compose a new serial structure of adaptive transversal filter model, and LMS (Least Mean Square) algorithm is used to adjust the weight values. As hysteresis loop of piezoelectric actuator is asymmetric and LPO operator is symmetric, a modified LPO (MLPO) adaptive filter is proposed for asymmetric hysteresis effect. At last, the two LPO filters are applied to model hysteresis characteristic of Piezoelectric actuator, and the modeling effect is verified via a micro-positioning system experiment platform based on Piezoelectric actuator. Experimental results show that the modified LPO filters can achieve better accurate hysteresis modeling.

A MMIC based 48 tap X-band adaptive transversal filter

2002 ◽  
Author(s):  
S. Bharj ◽  
D. Bechtle ◽  
G. Taylor ◽  
P. Jozwiak ◽  
S. Perlow ◽  
...  
Keyword(s):  
Transversal Filter ◽  
X Band ◽  
Adaptive Transversal Filter
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