نتایج جستجو برای: frequency domain data

تعداد نتایج: 3061574  

Journal: :IEEE Transactions on Industrial Electronics 2021

The feedforward control is becoming increasingly important in ultra-precision stages. However, the conventional model-based methods cannot achieve expected performance new-generation stages since it hard to obtain accurate plant model due complicated stage dynamical properties. To tackle this problem, article develops a model-free data-driven adaptive iterative learning approach that designed f...

2017
R. Swaminathan T. Meyyappan Rafael C. Gonzalez Richard E. Woods Steven L. Eddins Aziz Makandar Bhagirathi Halalli Shahnawaz Shaikh Ankita Raymond H. Chan Manoj Gupta Ashok Kumar

Application of filter on digital images can be made in two ways, which include spatial domain and transform domain known as frequency domain. The spatial domain deals directly with manipulation of data, pixel, present in an image, whereas the transform domain deals with manipulation of image-data in frequency domain. The aim of this paper is to deal with manipulation of data present in an image...

Seismic inversion is a method that extracts acoustic impedance data from the seismic traces. Source wavelets are band-limited, and thus seismic traces do not contain low and high frequency information. Therefore, there is a serious problem when the deterministic seismic inversion is applied to real data and the result of deterministic inversion is smooth. Low frequency component is obtained fro...

ژورنال: مهندسی دریا 2010
لطف اللهی یقسن, محمدعلی, مجتهدی, علیرضا,

For investigation of natural phenomenon, numerical simulation has attracted considerable attention from many sciences in the engineering field. In this paper, the parameters of hydrodynamics around cylindrical structures in steady current (specially, vortex-shedding frequency which results oscillating lift force and also Reynolds number) have been described then flow regime around specified pil...

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