Fourier

Fast Fourier transforming is directly used to the output signals of the system to determine the small disturbances in the former literature.

It was shown in [23] that the time-frequency pair of orthonormal basses that are related via the Fourier transform is highly incoherent.

Fourier transform is a way of looking at a time series as a sum of sine waves at different frequencies.

According the basic properties of Fourier series of period function and using of the abstract nature of mathematics, the method direct. . .

Chirplet transform is the general form of Fourier transform, short-time Fourier transform and Wavelet transform.

METHODS Fourier self deconvolution infrared spectroscopy was used for the determination of cefalexin in the cefalexin capsules.

Otaining the double Fourier transform answers to the question of transversely isotropic saturated porous half-space.

By means of the split-step Fourier method, the propagation of solitons in a photonic crystal fiber (PCF) is numerically simulated.

The Optical Transfer Function( OTF) of a linear optical system can be derived from the Fourier Transfer of the Line Spread Function( LSF).

According to the articles published, the harmonic analysis of electronic power system is usually achieved via Fast Fourier Transform(FFT).

The Fourier transform is an integral expression for a Fourier series applied to an infinitely long signal.

The lens-less device is called a Planar Fourier Capture Array. It's a flat piece of doped silicon.

Length of Fourier transform is connected with curve resolution. Curve resolution is lower, window length of Fourier transform is narrower.

The course has no specific prerequisites, although a basic knowledge of Fourier transforms is recommended.

Using Fourier analysis, the stability condition for the scheme is analyzed and the result of absolute stabilization is obtained.

The discharge gap voltage is represented in terms of Fourier transform , the equivalent impedance of DBD discharge gap is available.

For a general asymmetric optical system, the Fourier transform conditions of the system are derived by using the ray matrix method.

Fourier transform infrared (FTIR) spectroscopy technology becomes one of the most efficient methods in the study of atmospheric species.

Does not need to say that, fast Fourier transforms algorithm everybody all to know.

The body contours are processed by Fourier descriptors with data dimension being reduced, and templates are created.

Charles Fourier's harmonious society is an outstanding representative of those utopia society thoughts.

For anisotropic materials Fourier's law must be formulated in a more generalized form.

Phase unwrapping continues to be an important step in those techniques that obtain the phase from Fourier transforms.

At present, Fourier transform, short time Fourier transform and wavelets analysis are the main analysis methods of power quality.

Used Fourier transforming the nuclear logs, its vertical resolution can be achieved from analyzing the changes of amplitude spectrum slope.

The combination of the chain-code curve analysis and the Fourier descriptors is the distinctive characteristics of this paper.

The thermal insulation theory was analyzed and the heat transfer model was simplified based un the Fourier heat transfer law.

A function whose Fourier transform is itself is called a self-Fourier function.

In this paper, separation variable method is applied to solve a Fourier solution for the Dirichlet question in circle of poisson equation.

Spectral resolution of optical fiber Fourier transform spectrometer depends on maximum optical path difference(OPD).

For the microscopy by off-axis lensless Fourier transform holography, Fresnel reconstructing method is better than the convolution method.

Extended Fourier diffraction theory was used, and a relation of function depended on incident angle.

The best harmonic detection windowed Fourier transform function is achieved through experiments comparison.

This approach has fast speed as it works in spatial domain with neither complex Fourier transform nor iterative computation.

A dynamic aftereffect of texture density can be produced using changes in non-Fourier texture density (using balanced-dot textures).

A world in limbo, in the state of foetus, what an unheard-of spectre! Saint-Simon, Owen, Fourier, are there also, in lateral galleries .

Neither the coherent optical input image nor the Fourier transform hologram of the reference image is required by this system.

Fourier transform infrared spectra demonstrated that the aggregate substance on aluminum foils was aluminum myristate.

The formulations of the response are developed from the those of the frequence-domain by the Fourier transform.

The distribution of texture spectrum energy can be obtained, using Fourier spectrum under polar coordinate.

The structure of this monomer were confirmed by means of Elements Analysis, Fourier transform infra-red spectroscopy (FT-IR), 1H NMR.

Robust; Phase Shift Keying ; Frequency Shift Keying ; Discrete Fourier Transform; Discrete Cosine Transform; Spread Spectrum.

Analysis and discussion the improvements of new recursive real-time algorithm , comparing with the Fourier algorithm.

The general fact was thrust into the light by Fourier's work .

The structures of the films determined with Fourier-Transformation Infrared Spectrum after degradation.

The Fourier transform and the wavelet transform are two important mathematical transforms used in industry.

The correlative coding was equivalent to a pulse shaping filter after inverse fast fourier transform (IFFT).

This is not to say that Marx learnt nothingfrom utopian thinkers like Fourier, Saint-Simon and Robert Owen.

The resulted copolymers were characterized by Fourier transform infrared spectroscopy and thermogravimetric analysis, respectively.

The lens-less device is called a Planar Fourier Capture Array.

The half? wave Fourier algorithm was derived by the sampling signal without decaying DC component, and cannot filtrate the component.

To improve the performance of Fourier transform spectrometer, precise position and position error measurement methods are proposed.

The phase of the wave front is calculated from the recorded holograms by use of a two-dimensional digital Fourier-transform method.

Fourier transform infra red spectrometer observation of the characteristics of resultant peaks.

The influences of the CCD resolution and the discrete Fourier transform characteristic on correlation results are discussed.

The lifting wavelet transform does not depend on Fourier transform, so the calculation is simple and the operating speed is fast.

Spatial Modulation Imaging Fourier Transform Spectrometer(SMIFTS) is an important remote sensor for research and application.

The authors investigate the Fourier series of Weyl almost periodic functions by the new definition and prove the Parseval's equality.

As an example of the technique, let's compute the Fourier series which corresponds to a square wave.

This paper is a discussion of the application of the Fourier series for solving large deflection equations of plates and shells.

The approach to the differential use and integral characteristics of Fourier transform in time domain was also presented.

Results showed the wavelet transform is a more efficient method in comparison with Fourier transform.

A new optical image encryption method using dissymmetrical fractional Fourier transform and double random phase encoding was presented.

The procedure and method of emissivity field measurement for rice were conducted using a portable Fourier transform infrared spectrometer.

Fourier techniques provide a particular elegant framework from which to evolve a description of the formation of images.

The discrete Fourier transform (DFT)and discrete Hartley transform(DHT) can be considered as special cases of DYT.

Sampling data using fast Fourier transform (FFT) to numerical algorithm has obtained the high accuracy air shaft synthesis parameter survey.

OBJECTIVE: To differentiate Chinese traditional medicine semen euryales with Fourier transformation infrared spectrum.

S transform inherits the advantages of the wavelet transform and short time Fourier transform. It is suitable for medical image processing.

Metastable states turn out to contain contributions only from the axisymmetric mode, and at most one single non-trivial Fourier mode.

The classical Fourier law is modified when applied to the instantaneous heat conduction.

The arithmetic Fourier transform( AFT ) is a very important Fourier analysis technique.

After transforming the sampled chopping power signals by DFT (Discrete Fourier Transform), the spectrum charts are analyzed.

The original image was reconstructed exactly through the inverse Fourier transform to the coded image.

The structure and properties of the emulsion was characterized by Fourier transform infrared (FTIR).

Compared to Fourier algorithm, this algorithm can accurately calculate the magnitude of low-frequency fault components.

Algorithms are presented for maximally efficient computation of the crystallographic fast Fourier transform (FFT).

Supplements e. g. The first term of Fourier series is called the fundamental, the others the harmonics .

The measurement spectra were Fourier transformed and the frequency distribution of the spectra was obtained.

When proper care is exercised in the data collection, Fourier transform. infrared spectrometry can provide this information.

The finger nails of normal people and patients with cancer in digestive tract were studied by Fourier transform infrared (FTIR) technique.

Application result shows that fast Fourier transforms should be adopted in on-line monitoring. . .

Through making the inverse Fourier transform to test light source's interferogram, the authors obtained the spectrum of test source.

The Rang-Doppler imaging forms imagery through one dimension Fourier-transformed twice in Cartesian coordinate.

Secondly, the eyepiece and the Fourier transform lens are designed to minimize the secondary color by the ways of changing glass.

A multi-dimensional vector radix Fast Fourier Transform (FFT) algorithm with Decimation In Frequency (DIF) was proposed.

From the spectral interference signal, the relative phase is extracted by the Fourier transform method.

We tested the spectrum characteristic with UV3100PC spectrophotometer and Fourier transform infrared spectroscopy.

The secondary structure of the protein in these formulations was characterized using Fourier Transform Infrared (FTIR) spectroscopy.

For fetal MR imaging, an ultrafast imaging sequence, Half-Fourier acquisition single shot turbo spin echo (HASTE) was employed.

The normalized fourier descriptors are invariant in rotation, shift and scale transform in target recognition.

Fourier Transform plays a very important part on spatialization and reconstruction of MRI.

Fourier Transformation: GIMP plugin version of Fourier Transformation.

Fourier transform only makes sure the feature of a function singular and can not confirm the position and of singular point on space.

In the method, the forward numerical modeling is achieved by Fourier transform, and the overall optimization by hereditary algorithm.

The continuous-wave echo data should be separated time equally and output by fast Fourier transformation(FFT) before the operation.

The goal of this thesis is to explore the gait recognition technology based on body silhouettes by Fourier descriptors.

This paper proposes a new Fourier shape descriptor integrated with Principal Component Analysis(PCA) and the Farthest Point Distance(FPD).

The reconstructed hologram is obtained by applying inverse Fourier transform to encrypted hologram.

A Fourier Transform Raman (FT-Raman) Spectrometer with dynamic collimation, which uses a fixed mirror, is described in this paper.

The parameter estimation error of Continuous Zoom Analysis Fourier Transform of FFT and FT spectrum is studied is studied in this paper.

Integration is effected digitally and the magnitude and phases of the signal are extracted by Fourier analysis.

The single rectangular pulse is a typical signal in Fourier transform, which plays an important role in signal spectrum theory.

Based on the Fourier analysis for the input of triangular wave, the relation between the transfer function and reactivity was got.

The influence of the noise of Fourier transform frequency spectrum in the experiment on the retrieval result is also discussed.

Aiming at the above circumstances, this article introduces a new analysis and derivation method of Fourier transform.

Comparison is specially performed between Fourier algorithm and Kalman algorithm.

The existing analysis methods, such as Fourier Transform and order analysis, cannot express the property of these signals accurately.

Spatially Modulation Imaging Fourier Transform Spectrometer(SMIF TS)is a space remote sensor with important research and application value.

The recursive Fourier algorithm is used to calculate real-time parameters in real-time, which can satisfy the requirement of performance.

The composite films were characterized by Fourier transform infrared (FT-IR) and atomic force microscopy (AFM).

The reaction of OH radical with CO was investigated by time-resolved Fourier transform infrared (TR-FTIR) spectroscopy.

METHODS The PF content was detected by HPLC and FTIR spectra was analyzed with Fourier transform infrared spectrometer.

A Fourier analysis for the Green's function of the imaging system is provided.

The operating principles of an Imaging Fourier Transform Spectrometer(IFTS) are discussed.

In mathematics, Fourier analysis and Fourier transform have been developed for a long time.

This paper is mainly on theoretical research of femtosecond laser pulse Fourier space-time transform shaping.

Functions of the real variable: sequences and series of functions, entire series, applications to Fourier series.

Graphic Presentation of Application Related Concepts in Fourier Analysis.

It analyses the content of a sound and derives the Fourier spectrum.

The Fourier transform algorithm is chosen and is realized with hardware on FPGA.

This includes Fourier series, the Fourier transform, and Fourier analysis on (some) abelian groups.

Sith give the brief introduction to MOM combined with inverse discrete Fourier transform to analyse transient scattering problems.

Dynamic Demonstration of "Fourier Series Partial Sum Approaching Sum Function"

A method of the elimination of aliasing image in the digital reconstruction of Fourier CGH was presented.

Doing some of the image-processing procedures (such as Fourier transform, regional growth), people want to help!

The product was characterized by UV-visible spectroscopy, Fourier transform infrared spectroscopy and(()~1HNMR).

Meschach computes Fast Fourier Transforms, extracts columns and rows, and computes eigenvalues of symmetric matrices.

and joint time-frequency analysis include Short Time Fourier Transform and wavelet analysis.

A point-diffraction interferometry was presented based on Fourier transform instead of the phase-shifting point-diffraction interferometry .

The principle of reflecting rotating Fourier transform spectrometer was introduced in the present paper.

If the force is periodic, it can be decomposed into a combination of harmonic ones on use of Fourier series.

A periodic function, finite Fourier series, is used to activate the actuator for obtaining training samples.

This paper verifies Fourier descriptor of the human body.

This paper discusses the relation between Fourier series and wavelet transform.

The Radial-Harmonic-Fourier Moment presented in this paper is multi-distortion invariant.

The thermal aging behaviour of NR , ENR and CNR was studied by using Fourier Transform Infrared Spectroscopy(FTIR).

Lecture #17: Finding particular solutions via Fourier series; resonant terms; hearing musical sounds.

Computer simulation and performance analyzing of three optical encryption methods based on fractional Fourier transform are done.

It is not based on the Fourier analysis of the filter bank, but is based on the mathematical polynomial fitting or interpolation.

OFDM on the Fast Fourier Transform personal design MATLAB algorithm, more classic!

According to the line theory, Fourier transformation of strength distribution function for annular grating image has been obtained.

In this paper, a Fourier volume rendering (FVR) method is proposed, enabling real time preview of DRR.

MethodsTo detect the spectra character of LBP and DFU by Fourier transformation and Surface-Enhanced Raman Scattering.

The decrease of the drain-source voltage or bus voltage affects the entire spectrum evenly according to Fourier theory.

This paper introduces a new kind of heating bath on the Fourier infrared spectrometer.

Fourier-jun and his colleagues knocked on the first family is a middle-aged President, her husband is also just.

We have measured the 15 malignant and normal tissues of lung directly in Fourier transform infrared spectroscopy (FTIR).

Most of your CPU cycles are going into something based on Fourier transforms .

The pulsar super-resolution TOA algorithm based on stationary wavelet transform and fractional Fourier transform is proposed.

In the ensuing days, the Fourier-jun and his colleagues have visited more than 20 "F Street Station. "

The analytical solution of ultra-short pulsed elliptical Gaussian beams in free space is obtained based on the Fourier transform technique.

but the prize jury declined to publish it, criticizing the sloppiness of Fourier's reasoning.

The combination of double fiber optic Moire interference fringes and Fourier transform can measure an object 3-D profile.

Many are equipped with temperature-control and Fourier-transform attachments, and some have laser sources.

A new approach employing rough set theory and Fourier-Mellin transform to solve HRRP recognition problem is presented here.

The model is based on a modification to the smooth-earth parabolic equation, and uses the split-step Fourier algorithm.

The fractional Fourier transform of partially coherent flat-topped beams is also studied.

Maybe we could look for high frequency components in Fourier transforms on the sequences.

A course in mathematical analysis . Introduction to Fourier analysis and wavelets.

At present, phase shifting method, Fourier transform method and fringe skeleton method are three most important fringe analysis methods.

A new recognition algorithm is proposed based on the lifting stationary wavelet transform (SWT) and the fractional Fourier transform (FRFT).

Compared to conventional Fourier imaging, data acquisition could be accelerated by a factor of 3. 6.

In chapter 2, the methods of spin dynamical simulation and fast Fourier transformation are introduced.

So there are two peak values in the Fourier spectrum and the distribution of earthquake response become saw tooth shape distribution.

ABB is the market and technology leader in stack gas monitoring systems and a pioneer in Fourier transform infrared (FTIR) technology.

Based on the Fourier analysis, the basic theory of base flow separation using digital filter is presented.

Fourier transform looks at the whole signal at once, Strang says.

First , Fourier analysis is made for the arc voltage, and then the idea of harmonic analysis is discussed.

A rapid error separation method based on Fourier transform " is proposed, and corresponding mathematic model is also established. "

This paper proposed a gait recognition method based on Fourier Descriptors (FDs) and Artificial Neural Network.

The detection and parameter estimation of nonlinear FM signal based on the short fractional fourier transform.

Traditional wavelet transform has space local character. But most of feature wavelet are based on Fourier transform.

The transient time-domain response of 3D layered plate was obtained by fast Fourier transform (FFT).

Fast Fourier Transform is a kind of method to decrease the time used in DFT.

Unlike Fourier transform, the wavelet transform is a better analysis tools both in time domain and frequency domain.

A Simplified Fourier Method for Nonhydrostatic Mountain Waves.

Fourier series representation for periodical signals; 4.

Fourier transform profilometry based on wavelet analysis was used to detect the 3-D shape.

The Short Time Vector-Spectrum(STVS) is brought forward based on the Vector-Spectrum and the Short Time Fourier Transform(STFT).

The experimental conclusion is indicated rather strikingly in the Fourier plot of Fig. 223.

Warpped discrete fourier transform(WDFT), which is used for signal processing, adjust the sample location via a all-pass warping function.

We sat around talking about Fourier transforms.

The proposed algorithm makes use of forward nonuniform fast Fourier transform (NUFFT) for iterative Fourier inversion.

Absrtact: Presents an image encryption technology based on chaotic sequences and fractional Fourier transform.

Based on generalized discrete fourier transform(GDFT), this method can adjust the spaces of the subcarriers.

An implicit method is employed in solving diffusion term and projection term, such as Gauss-Seidel iteration method, Fast Fourier Transform.

FTP. m is extracted by Fourier transform phase. sincosfilter. m is the cosine filter.

This paper proposes an image hiding algorithm based on Fast Fourier Transformation (FFT).

Special attention is given about the main advantages and the future of Fourier transform in UV-Vis region.

Absrtact: A digital watermarking algorithm is proposed based on chaotic map and fractional Fourier transform.

A speed measuring system of moving mirror for Fourier transform spectrometer(FTS) based on FPGA is introduced.

The first involves multiplexing the filters in the Fourier plane, while the second involves multiplexing in the image plane.

The pulse signals were processed by using the fast Fourier transforms.

In this paper, the first method is phase encoding based on fractional Fourier transform.

But most of the people have an unclear understanding of discrete Fourier transform.

And the second is the image encryption based on iterative fractional Fourier transform.

Two-programs, PWPLVR and PFTLVR were designed to perform WPLVR and Fourier transform latent variable regression (FTLVR) calculations.

The third is the image encryption based on fractional Fourier transform and the three step phase shifting interferometry.

Whether a sixth is lurking around 55 Cancri A, only time (and Fourier) will tell.

It proved that using the Waterfall based on Short-Time Fourier Transform to analyze non-balanced signal has many advantages such as.

Quietly by the Community Association Beacon Police, Army and colleagues Fourier open the "F Street Station" in residence.

other is orthogonal series estimates, such as Fourier series and so on.

Fourier Series Solution For Bending of a Circular Thick Plate with Simple Supported Edges and Loaded by an Eccentric Concentrated Force

An Approach to Measure Pixel Length of CCD Camera System on Account of Joint Fourier Transformation

Orthogonal Signal Correction Used for Calibration Transfer of Fourier Transform Infrared Spectra

Non-damaging Identification of the Ingredients of Inks Dye in the Ball Pen Point by Fourier Transform Infrared Spectroscopy

Fourier Transform Infrared Spectroscopic Study of Different Parts of Wild Growing Edible Mushrooms

An optical study of the fractional Fourier transforms for a regular fractal pattern

Study of the characteristics of removing dc offset methods in fourier algorithm when signal has fundamental frequency deviation

Free Vibration Analysis of Arbitrary Shape Thick Plate with Curved Boundaries by Means of Fourier Expansion Collocation Method

Structural Principle of the Linear Ion Trap-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and Its Application in Proteomics

Revealing Doppler Signal's Feature of Continuous Wave Doppler System Radio Fuze for Air Attack by Means of Short Time Fourier Transform

Study of Thermal Perturbation of Rutin by Two Dimensional Correlation Analysis and Fourier Transform Infrared Spectroscopy

illuminating Fourier transformed signal light and reference light simultaneously on an optical recording medium;

Study on beam propagation characteristics by means of the Fourier series expansion

Study of Protein in Human Gallstones by Fourier Transform Infrared Spectroscopy and Surface-Enhanced Raman Spectroscopy

cover design for the double Fourier beads, and when cooked as a tablespoon, scoop the temporary stand, always makes the human-based;

Decomposing effect of chemical- biological decomposing combined technique on rice straw and its fourier transform infrared spectroscopy

A Normative Expression for the Optical Fulfillment of a Fractional Fourier Transformation

Auto-registration of Fourier Transform Magnitude Spectra and its Application on Texture Identification and Segmentation

The Compare and Analysis Between the Least Square Method and Fast Fourier Transform

Fractional Fourier transformation implemented by Fresnel diffraction with converging spherical wave illumination

Analysis of general nature of intermodulation products based on Fourier series method

A Study of the Fourier Transform Relation of Fraunhofer Diffraction Field and Plate Function

Study on windowed fourier transform algorithm and its improvement with interpolated method for harmonic detection

A Rapid and Nondestructive Study of Yi Herbs Dahongpao and Jigen with Fourier Transform Infrared Spectroscopy

Diffuse Reflectance Infrared Fourier Transform Study of Silicon Nitride Powders

Simulated study of realizing discrete convolution and discrete correlation by using fast fourier transform

The Fast Fourier Transform Algorithm for the Inverse and Generalized Inverse of the Permutation Factor Circulant Matrices

The Fast Fourier Transform Algorithm for the Multiplication of Two Scaled Factor Circulant Matrices

Determination of Complicated Surfactant Components Using Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Study of different Fourier algorithms for the elimination of decaying DC components

The Uncertain Relationship of Fourier Transformation and Its Reverse Transformation

Transformation properties of a Cosine-Gaussian beam in the fractional Fourier transform plane

A three-dimensional Fourier transformation migration method of magnetotelluric data and its application

Simultaneous Determination of Calcium and Magnesium in Water by Fourier Transform Filtering and Ratio Spectra Derivative Spectrophotometry

The Application and Study of Fourier Transform Method in Transient Speed Calculation for Diesel Engine

Study of Interaction Between Adhesive and Dentin by Fourier Transform-Raman Spectrometry

The Diffraction of Misaligend Optical System in Spatial - Domain Written in Terms of Fractional Fourier Transform

Focal length measurement by calculating Fourier transform spectrum interference fringes of symmetric double circular apertures

Identification of Resina draconis with Fourier transform infrared spectrometry by visualization of convolution transform

Compensating Nonlinearity of Optical Path Difference of Rotary Fourier Transform Spectrometer with Fitting Interferogram

Variable Angle Fractional Fourier Transform and Its Application in Modeling the Signal's Time-Frequency Structure

Chiral Molecular Recognition of Cyclodextrin to Tropine by Electrospray Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

Rapid Identification of Traditional Chinese Medicine Formula Particles by Fourier Transform Infrared Spectroscopy

Application of Microcomputer Technology, Fourier Transform and Wavelet Analysis to Transformer Comprehensive Test

Determination of the Contents of Free Amino Acids, Caffeine and Tea Polyphenols in Green Tea by Fourier Transform Near-Infrared Spectroscopy

Fractional Correlation Properties of the Joint Fractional Fourier Transform Correlator

Implementation of the Multichannel Fractional Fourier Transform Using Holographic Lens Array