نتایج جستجو برای: adaptive

تعداد نتایج: 198990  

ABSTRACT: In this study, adaptive neuro-fuzzy inference system, and feed forward neural network as two artificial intelligence-based models along with conventional multiple linear regression model were used to predict the multi-station modelling of dissolve oxygen concentration at the downstream of Mathura City in India. The data used are dissolved oxygen, pH, biological oxygen demand and water...

Background: Assertiveness is one of the most important skills needed by nurses to reduce interpersonal conflict and build an effective teamwork in complex hospital environments.  Objective: The aim of this study was to determine the effect of an assertiveness training program on nurses’ aggressive and adaptive assertiveness.  Methods: In this interventional study, participants were 64 nurses ...

عبدی‌پور, * عبدالعلی, محمدی, عباس , کشاورزی, محمد رضا ,

Abstract The effect of IQ imbalance on adaptive MQAM modulation in MIMO systems with direct conversion receivers is investigated in this paper. A continues power, discrete rate adaptive modulation scheme in using MIMO system with perfect channel information in both transmitter and receiver is considered. The selected adaptation mechanism changes the transmit power and transmit constellation s...

بکرانی, مهدی , لطفی زاد, مجتبی ,

Stereophonic acoustic echo cancellation is one of the expanding areas in the field of the speech/multimedia communication systems. In a conventional stereophonic acoustic echo canceller, working in a stereo communication system, the existence of the strong cross-correlation between the input signals to the two channels has the problem of the low convergence speed of the weights of the adaptive ...

In this paper, a new guidance law is designed to improve the performance of a homing missiles guidance system in terminal phase. For this purpose first of all, the two dimensions equations of motion are formulated, then the approximation dynamic of missile control loop is added to these equations which are nonlinear whit unmatched uncertainty. Then, a new adaptive back-stepping method is develo...

This paper proposes a switching adaptive control for trajectory tracking of unmanned aircraft systems. The switching adaptive control method is designed to overcome the wind disturbance and achieve a proper tracking performance for control systems. In the suggested system, the wind disturbance is regarded as a finite set of uncertainties; a controller is designed for each uncertainty, and a per...

The particle filter (PF) is a novel technique that has sufficiently good estimation results for the nonlinear/non-Gaussian systems. However, PF is inconsistent that caused mainly by loss of particle diversity in resampling step and unknown a priori knowledge of the noise statistics. This paper introduces a new modified particle filter called adaptive unscented particle filter (AUPF) to overcome th...

M. Alaee, M. Firoozmand, M. Sepahvand, R. Amiri,

In order to detect targets upon sea surface or near it, marine radars should be capable of distinguishing signals of target reflections from the sea clutter. Our proposed method in this paper relates to detection of dissimilar marine targets in an inhomogeneous environment with clutter and non-stationary noises, and is based on adaptive thresholding determination methods. The variance and t...

2015
Dov Te'eni

We need, increasingly, to design systems that can support complex behaviours in which users adapt dynamically to the progression of the task or to changing conditions during the interaction. Unfortunately, we lack procedures and methods to build systems for adaptive behaviour. This article proposes an approach that identifies dimensions on which users adapt their behaviour and then determines t...

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