نتایج جستجو برای: the fourier transform

تعداد نتایج: 16068293  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده علوم 1387

چکیده ندارد.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ولی عصر (عج) - رفسنجان - دانشکده ریاضی و کامپیوتر 1388

چکیده ندارد.

ژورنال: پژوهش در پزشکی 2005
نیکی وکیلی ظهیر, , انسیه فرهادی, , سید فرشاد حسینی شیرازی, ,

FTIR ) Fourier transform infrared) is a powerful tool for biological studies. It could be used for samples in different physical status. Prior researchers have studied biological characteristics of proteins, lipids, biologic membranes, carbohydrates, drugs, etc with this unique technique. The following article addresses some of the common applications of FTIR ( Fourier transform infrared).

Journal: :IEEE Trans. Signal Processing 2000
Soo-Chang Pei Jian-Jiun Ding

The discrete fractional Fourier transform (DFRFT) is the generalization of discrete Fourier transform. Many types of DFRFT have been derived and are useful for signal processing applications. In this paper, we will introduce a new type of DFRFT, which are unitary, reversible, and flexible; in addition, the closed-form analytic expression can be obtained. It works in performance similar to the c...

2007
TERENCE TAO

Very broadly speaking, the Fourier transform is a systematic way to decompose “generic” functions into a superposition of “symmetric” functions. These symmetric functions are usually quite explicit (such as a trigonometric function sin(nx) or cos(nx)), and are often associated with physical concepts such as frequency or energy. What “symmetric” means here will be left vague, but it will usually...

Journal: :Journal of the Spectroscopical Society of Japan 1989

Journal: :IEEE Signal Processing Letters 2017

Journal: :Differential Geometry and its Applications 1998

Journal: :The Journal of the Acoustical Society of America 1976

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