نتایج جستجو برای: adaptive system

تعداد نتایج: 2368222  

Journal: :journal of advances in computer research 0
masoumeh pourhasan department of computer engineering, faculty of engineering, chalous branch, islamic azad university, chalous, mazandaran, iran abbas karimi department of computer engineering, faculty of engineering, arak branch, islamic azad university, arak, markazi, iran

some applications are critical and must designed fault tolerant system. usually voting algorithm is one of the principle elements of a fault tolerant system. two kinds of voting algorithm are used in most applications, they are majority voting algorithm and weighted average algorithm these algorithms have some problems. majority confronts with the problem of threshold limits and voter of weight...

Journal: :basic and clinical neuroscience 0
somayyeh lotfi noghabi ali vahidian kamyad mohsen foroughipour amir hooshang mohammadpour

introduction: epilepsy is a clinical syndrome in which seizures have a tendency to recur. sodium valproate is the most effective drug in the treatment of all types of generalized seizures. finding the optimal dosage (the lowest effective dose) of sodium valproate is a real challenge to all neurologists. in this study, a new approach based on adaptive neuro-fuzzy inference system (anfis) was pre...

The camera stabilizer stabilizes the camera’s line of sight by isolating the camera from the model uncertainties, disturbances of operating environment and system movements. This paper presents a voltage-base optimal adaptive fuzzy sliding mode control for camera stabilizer. In this proposed control method, a voltage-base sliding mode controller is applied. But unfortunately, undesirable ...

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...

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...

Journal: :iranian journal of fuzzy systems 2014
p. moallem n. razmjooy b. s. mousavi

potato image segmentation is an important part of image-based potato defect detection. this paper presents a robust potato color image segmentation through a combination of a fuzzy rule based system, an image thresholding based on genetic algorithm (ga) optimization and morphological operators. the proposed potato color image segmentation is robust against variation of background, distance and ...

Journal: :international journal of automotive engineering 0
m. tehrani mechanical engineering department, university of tehran, tehran, iran r. hairi-yazdi mechanical engineering department, university of tehran, tehran, iran ba. haghpanah-jahromi mechanical and industrial engineering department, northeastern university, boston, massachusetts, usa v. esfahanian mechanical engineering department, university of tehran, tehran, iran m. amiri mechanical engineering department, university of tehran, tehran, iran r. jafari mechanical engineering department, university of tehran, tehran, iran

in this paper, an adaptive rule based controller for an anti-lock regenerative braking system (arbs) of a series hybrid electric bus (sheb) has been proposed. the proposed controller integrates the regenerative braking and wheel anti-lock functions by controlling the electric motor of the hybrid vehicle, without using any conventional mechanical anti-lock braking system. the performance of the ...

Journal: :journal of food biosciences and technology 2016
y. vasseghian gh zahedi m ahmadi

this study investigates the oil extraction from pistacia khinjuk by the application of enzyme.artificial neural network (ann) and adaptive neuro fuzzy inference system (anfis) were applied formodeling and prediction of oil extraction yield. 16 data points were collected and the ann was trained with onehidden layer using various numbers of neurons. a two-layered ann provides the best results, us...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده نقشه برداری 1390

خصوصیات هر سطح گسترده ی موجود در تصاویر sar به وسیله ی ضریب بازپراکنش (?^0) و بافت آن سطح قابل شناسایی است. اما دقت برآورد این پارامترها در هر پیکسل از این تصاویر توسط پدیده نویزگون speckle کاهش می یابد. این پدیده که حاصل برهم نهی سازنده یا ویرانگر امواج بازپراکنش شده از سطح جسم می باشد، در تصویر به صورت لکه های روشن و تاریک دیده می شود. وجود speckle در تصاویر sar تا حدی اجتناب ناپذیر است که می...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده ریاضی و کامپیوتر 1387

امروزه استفاده از بیش از یک عامل (روبات) به منظور انجام کارها مورد توجه پژوهشگران قرار گرفته است. استفاده از گروهی از عامل ها موجب سریعتر انجام گرفتن کارها، مقابله با خطاهای احتمالی در سیستم (افزایش قابلیت اطمینان سیستم) و ساده تر شدن عامل های مورد استفاده می گردد.در چنین سیستم هایی همکاری و هماهنگی عامل ها از اهمیت بسیار زیادی برخوردار است. روش های متعددی توسط پژوهشگران به منظور هماهنگ نمودن گ...

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