نتایج جستجو برای: l filter

تعداد نتایج: 734990  

2011
Choon Ki Ahn Moon Kyou Song M. K. SONG

This paper investigates the delay-dependent L2 − L∞ filtering problem for time-delayed switched Hopfield neural networks. A new type of L2−L∞ filter is proposed such that the filtering error system is asymptotically stable with guaranteed L2 − L∞ performance. The criterion is formulated in terms of linear matrix inequalities (LMIs), which can be checked readily by using certain types of standar...

2015
Vandita Singh Rajesh Mehra

In this paper we proposed an efficient structure for sampling rate conversion by rational factor of L/M, where L is upsampling factor and M is downsampling factor. In this method, the coefficient symmetry of the linear phase filter is used. In this way, the number of required multiplications per output sample is reduced. For implementation we use linear phase FIR filter. The symmetric FIR filte...

2011
J. Badenhorst

Pit latrines are the most frequently used sanitation systems in developing countries because of weak infrastructure and poor economic wealth. A modified ventilated improved pit latrine, with a biological filter beneath is proposed to stabilize and to remove the bulk of the nitrogen from the liquid phase. Although the hydraulic loading rate in the proposed biological filter system was calculated...

Journal: :European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery 2004
Adrianus J de Vries Y John Gu Yvonne L Douglas Wendy J Post Harm Lip Willem van Oeveren

OBJECTIVES Fat microemboli are generated during cardiac surgery that are associated with post-operative organ injury. Recently, a fat removal filter has been developed, based on a polyester leukocyte depletion filter. However, the efficacy of such a filter in a clinical setting is unknown. In this study we tested the efficacy of this filter. METHODS Coronary artery bypass patients were random...

Journal: :iranian journal of public health 0
ah mahvi j nouri n tabatabaie

slow sand filters are as a proper technology for pre-treatment of raw water, with a fine and medium trubidity in small communities in developing countries. thus, with a minimum operation cost and minimum need for expest bodies have the maximum efficiency. the purpose of this research is carried out to evaluate the efficiency of two processes of horizontal flow roughing filter and vertical flow ...

2009
Henrique S. Malvar

Quadrature mirror filter (QMF) banks are essential building blocks of a subband/transform coder. Generally, one wants the filter bank to have the perfect reconstruction (PR) property, which means that, in absence of coding, a delayed copy of the original signal is reconstructed exactly in the critically-sampled analysis-synthesis system of Fig. 1. Although there are useful filter banks that are...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2003
H Odegaard Z Liao A T Hansen

In this paper coarse media filtration has been analysed as an alternative to the traditional settling in primary, secondary and tertiary treatment of wastewater. Various filter media configurations were evaluated for enhanced primary filtration. It was found that a dual media configuration based on Kaldnes biofilm media (1 and K2modified) were most suitable when taking both separation efficienc...

1994
Markus Lang Joachim Bamberger

We examine the problem of approximating a complex frequency response by a real-valued FIR lter according to the L 2 norm subject to additional inequality constraints for the complex error function. Starting with the Kuhn-Tucker optimality conditions which specialize to a system of nonlinear equations we deduce an iterative algorithm. These equations are solved by Newton's method in every iterat...

2017
G. Preethi E Swathi K. K. Senthilkumar

17 Abstract— An analysis is made on the computational complexity of Block Least Mean Square Adaptive Filter where the filter computation is decomposed into M sub filters and M=N/L where N is the filter size, L is the block size. The decomposition is done inorder to favour time-multiplexing of the filter output computation and weight-increment term computation of adaptive filter. This structure ...

Journal: :Journal of Electromagnetic Analysis and Applications 2011

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