نتایج جستجو برای: noise function

تعداد نتایج: 1380816  

ژورنال: طب کار 2017
ابارشی, فاطمه, جلیلیان, حامد, خواجه وندی, علی اصغر, ذکایی, مجتبی, علیمحمدی, ایرج, فقیه نیا ترشیزی, یوسف, فلاحتی, محسن,

Introduction: driving is such a complex cognitive task that requires a high level of vigilance and response to an emergency. Anything that leads to cognitive performance degradation in the driver's mental processing, increases crash risks. Traffic noise as one of the most destructive elements of cognitive function was examined in this study. Methods: In this study, the sample consisted of 80...

Journal: :رادار 0
سید وهاب شجاع الدینی رحمان کبیری علی کرمانی مهدی فریدونی

in this paper a new method is presented which minimizes the destructive effects of measurement noise belonging to delays between receiver sites in accuracy of locating targets. for this purpose the geolocation equations are re-written by considering measurement error, therefore a cost function is introduced subject to position of sites, time difference of arrival of signals and measurement nois...

ژورنال: کنترل 2020

In this study, a novel fault detection scheme is developed for a class of nonlinear system in the presence of sensor noise. A nonlinear Takagi-Sugeno fuzzy model is implemented to create multiple models. While the T-S fuzzy model is used for only the nonlinear distribution matrix of the fault and measurement signals, a larger category of nonlinear systems is considered. Next, a mapping to decou...

A. Sheikhi, M. M. Nayebi, M. R. Moniri,

A detector for the case of a radar target with known Doppler and unknown complex amplitude in complex Gaussian noise with unknown parameters has been derived. The detector assumes that the noise is an Auto-Regressive (AR) process with Gaussian autocorrelation function which is a suitable model for ground clutter in most scenarios involving airborne radars. The detector estimates the unknown...

Rahman Kabiri Seyed Vahab Shojaedini,

Introduction In recent years methods based on radio frequency waves have been used for detecting breast cancer. Using theses waves leads to better results in early detection of breast cancer comparing with conventional mammography which has been used during several years. Materials and Methods In this paper, a new method is introduced for detection of backscattered signals which are received by...

Journal: :Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene) 1982

رحیمی فروشانی, عباس, فلاح مدواری, روح اله, فلاح مدواری, علیرضا, لعل, فریدون, مجلسی, فرشته, منظم اسماعیل پور, محمد رضا,

Introduction: The use of hearing protective devices (HPDs) is the last way for noise control. It is important to know the information about the duration time using these devices to ensure protetion effectiveness. The aim of this study was to investigate the effect of increasing duration time of the using of the devices on hearing loss in tile industry workers with application of the BASNEF educ...

Journal: :The Journal of the Acoustical Society of America 1960

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