نتایج جستجو برای: lms method

تعداد نتایج: 1634412  

2004
Scott C. Douglas

This paper describes novel plant identification and adaptive noise control algorithms that exploit a specific spatio-temporal structure of the multichannel secondary propagation path in simple acoustic environments. A gradient-based plant identification method is proposed that significantly reduces the number of parameters within the secondary path model. We then propose a hybrid adjoint/filter...

Journal: :medical journal of islamic republic of iran 0
nasrin sayfouri department of foreign languages, school of health management and information sciences, iran university of medical sciences, tehran, iran.

background: learning management system (lms) is a web-based system designed to support teaching and learning at an institution. the capabilities of any lms are required to be evaluated to detect the room for improvement. this study aimed at discovering the students’ perceptions of the functions of the lms at iran university of medical sciences (iums).   methods: this qualitative study included ...

2015
Chen Xing

For the research of simulation of synchronization control for pneumatic elevator, a model is builtin AMESim software. The simulations are used to research the impact of synchronous control strategy. The simulation results show that there are good synchronizing effects by applying pneumatic proportional technology and synchronization control with master-slave mode based on PID control. Some theo...

2013
Dominik Scholz Thomas Frank Samir Patel

For the ANSYS CFD codes CFX and Fluent coupling links to several 1D codes exist allowing for a wide range of multi-physics applications. As an example, a flexible coupling infrastructure in terms of supported multiphysics coupling conditions between ANSYS CFX and LMS AMESim is outlined. Examples of the wide range of coupling solutions of ANSYS CFD (CFX and Fluent) and coupled 1D-3D applications...

Journal: :Optics express 2009
Russell C Hardie Frank Baxley Brandon Brys Patrick Hytla

In this paper, we present a scene-based nouniformity correction (NUC) method using a modified adaptive least mean square (LMS) algorithm with a novel gating operation on the updates. The gating is designed to significantly reduce ghosting artifacts produced by many scene-based NUC algorithms by halting updates when temporal variation is lacking. We define the algorithm and present a number of e...

Journal: :CIT 2015
Alexei Scerbakov Martin Ebner Nick Scerbakov

LMS (Learning Management Systems) today are being widely used in almost every educational facility. In the last years all conceivable use cases that need to be carried out by such LMS have been defined and the features a modern LMS needs to offer are very clear. Rarely do we find something a teacher or student needs that an LMS cannot offer. So the task for LMS developers shifted from offering ...

2017
Jaewu Choi Eizi Morikawa Stephen Ducharme Peter A. Dowben

We compare the photoemission and electron energy loss spectra of crystalline poly(vinylidene-fl uoride with trifl uoroethylene: 70%: 30%), P(VDF–TrFE), fi lms, fabricated by the Langmuir–Blodgett technique and annealed in vacuum, with in situ thermally evaporated fi lms of poly(vinylidene-fl uoride) (PVDF) in vacuum. Th e electronic structure and vibrational modes of the short chain PVDF fi lms...

Journal: :Vision Research 1997
Holger G. Krapp Roland Hengstenberg

We present a method to determine, within a few seconds, the local preferred direction (LPD) and local motion sensitivity (LMS) in small patches of the receptive fields of wide-field motion-sensitive neurons. This allows us to map, even during intracellular recordings, the distribution of LPD and LMS over the huge receptive fields of neurons sensing self-motions of the animal. Comparisons of the...

Journal: :Signal Processing 2006
Jerónimo Arenas-García Manel Martínez-Ramón Ángel Navia-Vázquez Aníbal R. Figueiras-Vidal

For least mean-square (LMS) algorithm applications, it is important to improve the speed of convergence vs the residual error trade-off imposed by the selection of a certain value for the step size. In this paper, we propose to use a mixture approach, adaptively combining two independent LMS filters with large and small step sizes to obtain fast convergence with low misadjustment during station...

2016
Sunita Sirvi Lokesh Tharani

In wireless communication systems, to obtain channel state information (CSI) channel estimation is required. By doing estimation of channel bit error rate (BER) reduces. LMS algorithm gives best performance comparative to previous estimation technique LS and MMSE, the former is too sensitive to noise and later is too complex. LMS algorithm adopts the principle of steepest descent method and bel...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید