frequency domain

It shows in theory that the frequency domain sounding in near zone of the line current source is possible.

In frequency-domain channel equalization, one of the most crucial technologies is to seek the response of an equalization filter.

Firstly the frequency domain was discretized into limited points. And a logarithmic sampling method was used to select samples.

The apparent resistivity mapping of the helicopter frequency domain EM system in magnetic area has been a problem of long controversy.

Secondly introduce two realization means of pulse compression: time-domain realization and frequency-domain realization.

Then the system model of the traditional time-domain LMS and frequency-domain block LMS adaptive filtering algorithm was built.

The time domain arid frequency domain form of exciting and response is acquired from simple-supported-beam exciting test.

The VLSI implementation of the CWT(continuous wavelet transform) can be divided into two methods: time-domain and frequency-domain.

Furthermore, this experiment can also provide the criterion of the frequency selected for the frequency domain study of formation rocks.

Circuits will also be covered. In particular, we stress the frequency domain analysis of the circuits, which gives a new.

An independent frequency domain model and an independent time domain model are made for the Sigma-Delta fractional frequency synthesizer.

The filtering in spatial domain, spatial frequency domain and a system of optical formatting imagines are also analyzed.

Wavelet analysis has good localization and can be used in multi-resolution analysis of time domain and frequency domain.

Secondly, frequency-domain model of stochastic transportation network and its expected methods are studied.

Considering the influence of the membrane forces, a hydoelastic analysis method of a floating plate in frequency domain is presented.

Simulation gear fault experiment, in extraction time-domain analysis and frequency-domain analysis obtain fault characteristic information.

These methods are classified into three categories: statistical signal processing, frequency domain analysis and time-frequency analysis.

The calibration filter is applied to the received radar signals in the frequency domain either before or after pulse compression.

A least squares method for identification of non- integer order systems is introduced into frequency domain and an algorithm is presented.

Finally, some simulations using spaceborne spotlight SAR parameters testified the advantages of frequency domain polar format algorithm.

Frequency-domain reflectometry (FDR): The loop is sounded with a swept sinusoid to identify frequencies that either resonate or are "dead. "

The optimal filter coefficients are calculated in the frequency domain by FFT and are derived from an eigenvector of a matrix.

Small-signal analysis and corresponding frequency domain simulation are further performed with comparison among different models.

We give the basic theory of frequency filtering. In the frequency domain, the work focuses on the adaptive Gaussian frequency filter.

Then the applications of the simulation solution in both time domain and frequency domain are presented respectively.

Step One: Select a WAV file as the target of analysis. (Ding. wav) Step Three: Transform and painting to FFT frequency domain graphics.

Secondly, on the basis of the frequency domain algorithm, a valid robust blind image watermarking algorithm is designed.

Accordingly an real-time implementation of a frequency domain transcoder (FDTC) on DSP media processor is proposed.

The experimental results show that the combination of spatial and frequency domain methods enhances the security of video data.

The model combines good time domain, frequency domain resolving ability of wavelet transformation and nonlinear learning ability of SVM.

The course introduces the analysis theory of the optical information system in the special frequency domain.

The asymptotic stability of linear neutral delay systems was studied with an eigenfunction approach based on a frequency domain.

At the end of the paper, we would found the waveform in time domain and in frequency domain, They agree with the demand of WCDMA system.

The results show that the simplified building-soil system can obtains accurate results in both the frequency domain and the time domain.

The analysis of time domain, frequency domain and the management of sampling data can be completed in this System.

The eventual experimental results showed that: Frequency-domain algorithm has more advantages than time-domain algorithm.

Wavelet transform has upstanding quality at time domain and frequency domain, which can effectively characterize signals.

The training sequence of channel estimation in frequency domain should have flat spectrum, which can estimate channel fast and exactly.

The turbulent atmosphere is considered as a stationary random process in the frequency-domain method.

Wavelet enhancement considers the spatial domain and frequency domain of image signal, but not the nonlinearity of vision.

At present, the common frequency domain watermarking algorithm primarily adopts wavelet transformation or DCT.

Extraction of the embedded data is achieved by using a frequency domain correlation approach without the original host signal.

The frequency response of the Wiener filter is derived through minimisation of mean square error in the frequency domain.

Both types have their own advantages: frequency domain methods have strong robustness, while spatial domain methods have higher accuracy.

CONCLUSION: The time-domain and frequency-domain information play an important role in Chinese speech tone recognition.

According to the work space domain, image fusion can be divided into space domain, spectral domain, frequency domain and the scale domain.

The frequency domain response of single pile embedded in half-space saturated soil and subjected to Rayleigh waves was investigated.

From analysis the paper comes to the conclusion that frequency domain polar format algorithm can avoid the error completely.

By adding a random complex sequence to the spectral components in the medium and low bands in the frequency domain, a watermark is embedded.

Algorithm of quadratic integral was designed from the frequency domain with better implement of integration process.

A rough consistency in the results obtained from the time-domain and frequency-domain methods and wind tunnel testing is observed.

This method is founded on the frequency domain model of DS-UWB array signals. The spatial spectral function is then derived for analysis.

Firstly, delay-multiply signal can detect the chip rate and the carried frequency in the frequency domain through multi-autocorrelation.

On the basis of classical plane strain case, the analytical solution on dynamic response of pipe pile in frequency domain was derived.

In the end, by the comparison of the algorithm in time domain and frequency domain the improvement mentality of the algorithm is proposed.

The whole identification process is from coarse to fine and combines geometric features and frequency domain features.

This model uses the frequency domain transmission matrix to express the OTN node transport characteristics.

After optimization, time domain response of various typical signals and the frequency domain response are simulated.

The shift of sample area can be resolved by signal resample in frequency domain or time domain.

LMS adaptive filters can suppress high power narrow band interference effectively in frequency domain.

Amplification of P waves by flexible space is analyzed by exact dynamic-stiffness matrix of soil and half-space in frequency domain.

Homomorphic filtering is a frequency domain operation to compress image light area and enhance contrast.

The technology of airborne radar signal processing has developed from time domain to frequency domain and space domain.

Secondly, it extracts the transient quantities with the localization in time-frequency domain of wavelet transform.

In this paper, influences of wave spreading on the motions of ship were studied in frequency domain, time domain and by model test.

The frequency transformer converts speech signals from the time domain to the frequency domain.

Although frequency domain method was good at processing in frequency, the computational amount was large.

Emphasis is placed on data preprocessing and parameter estimation in the time domain and frequency domain.

In frequency domain, each layer in structure was simulated as two-node layer spectral element or one-node spectral element.

It contains the advantages of SC-FDE and the complexity decreasing in MMSE algorithm by frequency-domain QR (FD-QR) decomposition.

The effectiveness and practicability of POD were illustrated by comparing new data with test data in time domain and frequency domain.

Recently, for the reception of DS-CDMA signals, the MMSE frequency domain equalization is applied instead of RAKE combining.

Plenty of noises was denoised by the wavelet packet threshold denoising with local feature well in time-frequency domain.

The design of control parameters in frequency domain was also presented.

The methods of process signal include a time-domain, frequency-domain, wavelet, cepstrum and calculation kinds of function feature.

Then least square method in discrete frequency domain is used to estimate the remainder fractional part of TOA.

Expressions for alternating phase shift mask were given for both space domain and frequency domain.

In order to characterize fault signals, many approaches were used to seek salient characteristic signals in time-frequency domain.

Make time and frequency domain analysis for the test data, and compare with the results of vibration mode and numerical simulation analysis.

System calibration in frequency domain and the common problems of spectrum analysis are resolved.

Then a planar blind search algorithm based on frequency domain and time domain, which can autoscan all the frequency point and symbol rate.

Important aspects related to re-sampling into the frequency domain are examined, leading to results of high quality.

Sound powers for main noise sources distribute on wide frequency domain with high amplitude.

The OMP method is exploited for capturing and fusing edges and texture features in the high frequency domain.

In frequency domain, each layer in structure was simulated as two-noded or one-noded spectral element.

This paper presents a frequency domain-based structural similarity(FSSIM) method for image quality assessment.

Essentially, eliminating the ISI by OFDM and SC-FDE is frequency domain signal processing.

Firstl, theory and procedure of the frequency domain polar format algorithm are described.

The three analog signal types are the DC signal, the time domain (or AC) signal, and the frequency domain signal.

Thirdly, this dissertation talks about the frequency domain filtering.

So the frequency-domain induced polarization has a broader space for development.

The structural similarity is calculated using the frequency domain, the brightness, and the contrast functions.

In the end, this dissertation analyzes and compares the ground clutter suppression performance of the time and frequency domain filtering.

Especially for the low frequency, it is two orders of magnitude more than the frequency domain analysis.

Then the information hiding algorithm basing on quantization coding in time domain and the one in frequency domain are brought forward.

This paper presents a self-adaptive vowel-frame detection algorithm based on energy distribution analysis in frequency domain.

The method of frequency domain is used to research the random responses of linear system on vehicle dynamics.

It can combine the time domain, frequency domain and space domain of the images organically and decorrelation the information of the images.

Frequency domain cross-variance of the input and the filter response shows strictly white noise. (6).

The forward problem of vertical cuboid element in frequency domain was developed in this paper.

The accumulator play an important role in low frequency domain but not effective in high frequency domain. T. . .

A maximum likelihood (ML) super-resolution algorithm based on frequency domain correction is proposed.

The corresponding identification methods, such as lifting method, frequency domain method and subspace method, are also discussed.

An improved audio digital watermarking in frequency domain is presented based on the patchwork algorithm.

This paper proposed a secret watermarking schema in frequency domain based on extending frequency theory.

Operational modal analysis method of bridge was built based on frequency domain and spatial domain decomposition.

The forward problem studies have more in space domain than in frequency domain.

This leads to time-frequency analysis. Time-frequency analysis describes signals in both time and frequency domain.

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

The neural network diagnosis method based on frequency- domain kernel of nonlinear circuit is presented.

This paper presents a frequency-domain digital watermarking algorithm based on VQ compression.

The analysis method is also called S domain analysis or after the frequency domain analysis.

Wavelet analysis is a brand new mathematical tool which has good resolutions at both time and frequency domain.

The feature extraction method based on efficient points of response curve is studied in time domain and frequency domain.

Analog frequency domain signals are similar to time domain signals because they also convey information on how the signals vary with time.

At first, the solution for frequency domain integral equation (FDIE) is presented from frequency domain Maxwell Equations.

the time domain and peaking in the frequency domain.

Secondly, the algorithm and the structure of matching filter on frequency domain are analyzed.

At last, it takes steady trapping method based on frequency domain in to practice on DSP hardware platform.

They show different characteristics in time and frequency domain and share no statistical features.

Based on impulse response, the solving method of transient flow in frequency domain is described.

We can analysis the sampling transient speed signals by the ways of time domain and frequency domain.

It can combine the time domain and the frequency domain. It analyses the images by Multi-Resolution Analysis.

The hydrodynamics in the used frequency domain were calculated based on 3-D Green's integral equation method.

Finally, it is easy to move form the Laplace domain into frequency domain.

Because there is no the actual measured time history of fluctuating wind velocity, the frequency-domain method can not be used.

Based on frequency domain distribution and scale feature of textural information, we can do texture classification effectively.

In addition, we study the technology of image compression based on frequency domain.

The window function is used in frequency domain, so as to reduce the frequency leakage.

Two kinds of digital watermark methods about image based on DCT and DWT in frequency domain were mainly researched in this article.

As stochastic process, seismic ground motions are considered non-stationary not only in time domain, but also in frequency domain.

We also propose a new frequency-domain technique to study ultrafast processes in a material.

Sort of data driven frequency-domain echo-cancellation algorithm

Frequency domain low-pass filters used for morphometry and its error correction

Study of the clinical significance and diagnostic standard of frequency-domain correlation cardiogram on coronary heart disease

Analysis on the Frequency-domain Detection Performance of the Long-disance Remote Control System for the Acoustic Coding Signal

The General Diffraction Integral Formula of Misaligned Optical System in Frequency-domain

The Application of the Finite Difference Frequency Domain Method in Two Dimension Periodic Guided Waves Structures

Study of Time-Domain Near-Field Measurements by Indirect Frequency-Domain Algorithm and Direct Time-Domain Algorithm

The Near Field Frequency Domain Solution of a Rotating Point Source in a Close Cylindrical Cavity

Electromagnetic Response Character of Helicopter Frequency Domain EM System above Uniform Half Space and Its Prospecting Depth

converting the time-domain signal into a frequency-domain signal;

Multivariable Frequency Domain Identification and Experimental Demonstration of Active Vibration Control on a Flexible Plate

Frequency Domain Solution of a Rotating Point Source in an Infinite Duct

Quantitative Determination of the Tissue Oxygen Saturation Using Frequency-domain Near-infrared Spectroscopy

Frequency-Domain Resolution and Its Improvement During Empirical Mode Decomposition

Calculation of the Motion of a Moored Floating Structure by Using Second Order Frequency Domain Method

Frequency-domain solution of shear stress along pile-soil interface for longitudinal vibration of piles and its application

A Phase-relevant Closed-loop Frequency-domain Identification Method and Its Application in Optimal Tuning of PI Controllers

Multiparameter Optimization of Iterative Frequency-Domain Deconvolution Filters

Frequency-Domain GTLS Identification Combined with Time-Frequency Filtering for Flight Flutter Modal Parameter Identification

Design and Realization of a Signal Processing System Based Detecting Technique in Time Domain and Frequency Domain

The Orthogonal Wavelet with Compact Support in Frequency Domain and Its Application on Transient Protection

Frequency Domain Characteristics Analysis of a Hydraulic Fluid System

Applied study of frequency domain of modular acoustic wave in geologic interpretation

Study on Windowing Degradation of Frequency Domain Narrowband Interference Suppression Algorithms in Spread Spectrum System

Researches on Vibration Characteristics of a Rub-impact Rotor System in Frequency Domain

Improvement on Detection Correctness of Transformer Winding Deformation by Frequency Domain Division Technology

Bifurcation of Nonlinear Maps with Time Delay in the Frequency Domain with Application to a Metapopulation Model

Flexible Satellite Attitude Decoupling Controller Design Using Multiple Variable Frequency Domain Method

Research Progress of Frequency Domain Decoupling Control Design for Chemical and Industrial Multivariable Processes with Time Delays

Complex Frequency Domain Analysis of the High Precision Programmable Voltage Supply Circuit of Laser Resistance Trim System

A Weight-Feedback Frequency Domain Adaptive Filtering Algorithm for Multi-Narrowband Interference Suppression

Single Carrier Frequency Domain Equalization for High Data Rate Transmission Systems over Frequency Selective Fading Channels

Frequency Domain Adaptive Time Delay Estimation and Study on its Application in Passive Acoustic Localization

Suppression of a Special Side-lobe of Phase Code Signal in Frequency Domain Pulse Compression

Characterization of the Ultra-thin Elastic Layer by Ultrasonic Longitudinal Reflection Wave in the Frequency Domain

Frequency Domain Measurement of Multimode Optical Fiber Information Transmission Capacity

A Frequency-Domain Design Method for Iterative Learning Control in an Arbitrary Initial State

Frequency Domain Adaptive Algorithm of Radar Anti-narrow-band Jamming and Its Implementation

Frequency Response Function Estimation Using Time-Frequency Domain Filtering and Application to Flight Flutter Testing

Time-Frequency Domain Interference Suppression Algorithm for Linear Frequency Modulation

Analysis of the BER Performance of Chip-Level Differential Detection for Frequency Domain Spread Spectrum System

An Approach of Light Damping Structure Measurement by Amplitude Tracking in Frequency Domain

Modeling of electromagnetic responses in frequency domain to electrical anisotropic formations

Order Component Extraction on Instantaneous Frequency Estimation and Time-frequency Domain filtering

Image restoration using frequency- domain regularized inversion and wavelet- domain wiener filtering

Calculating Transient Heat Transfer Through Spherical Wall Using Frequency- Domain Regression Method

A Novel Frequency Domain Identification Algorithm for SISO Systems with a Delay

Frequency-domain Performance Compensation for Dither Control Loop of Mechanically Dithered Ring Laser Gyroscope

Analyzing Point Defect Two-dimensional Photonic Crystals with Transfer Matrix and Block-iterative Frequency-domain Method

FEM; nonlinear transient field; frequency domain; eddy current; Fourier transformation;

Suppression of pulse impairments due to cross-phase modulation by frequency domain phase conjugation

Compare and Analysis of Frequency - dotting and Frequency Sweeping Measuring Technology in the Measurements in the Frequency Domain

Stability Analysis and Controller Design for Fractional-order Control Systems: The Extended Frequency Domain Method

Frequency-Domain Characterization for Electromagnetic Pulses with Random Timing Jitter

Study on Prediction Method of Coal Seam Thickness Using Seismic Data Frequency Domain and Its Application

Digital Filtering and Frequency Domain Compensation Method for Improving ATS Measurement Precision

Improvement of Frequency Domain Adaptive Echo Cancellation Algorithm with Local Interference

Blind Equalization Algorithm in Frequency Domain Characterised with Restricted Learning Rate

Comparison Between Time-domain Analyzing Method and Complex Frequency-domain Analyzing Method of Dynamically Linear Circuit

Generalized Total Least Squares in Frequency Domain for Aircraft Flutter Modal Parameter Identification

Investigation on Dielectric Properties of Biological Cells with Impedance Technique in Frequency Domain

Discussing of a Wrong Viewpoint about the Realization of FIR Digital Filter in the Frequency Domain

Screening of obstructive sleep apnea syndrome from time-domain analysis and frequency-domain analysis of heart rate variability

Feedback frequency domain equalization for approximate parallel receiver

Single-Carrier Frequency Domain Equalization in Future Wireless Communications

Modal Identification of Full Bridge Aeroelastic Model with Frequency-Domain Approach of Ambient Random Vibration

Research and Simulation of Fast Adaptive Interference Cancellation Algorithm in Frequency Domain

The Modified Iterative Frequency-Domain Deconvolution Filter Based Image Restoration

Identification of Frequency Domain Maximum Likelihood System Using Genetic Algorithm

Research on frequency-domain sensitivity of lossless exponential transmission line network

the preprocessed signal is discrete Fourier transformed and digital signal frequency domain filtered;

Analysis of BER performance of frequency domain differential detection OFDM system in multipath fading channels

Electromagnetic modeling due to line source in frequency domain using finite element method

Exact sensitivity formulas of parabolic lossy nonuniform transmission lines in frequency-domain

Spacial frequency domain reconstruction method for acoustic holography analysis of noise fields

Frequency Domain Regularization for Single Frame Image Resolution Improvement

Interference Suppression in Spread Spectrum Communication in Frequency Domain

Study of focused impulse sound field in time domain and frequency domain for hyperthermia

Calculating Wall Periodic Response Factors Using Frequency-Domain Regression Method

Research of Fast Variable Step-Size Adaptive Transmitter-Receiver Isolation Algorithm in Frequency Domain

Research on suppression of narrowband jammer using frequency domain filter with adaptive energy threshold

Consistency Issues of the Answer to Using Time-domain and Complex-frequency-domain Methods to Solve LTI Systems

Application of Household in the Frequency Domain Modeling of the Lateral-normal Stabilizer of Missile

A Novel Simulation Method in Frequency Domain for Locating Faults in Power Transformer Windings under Impulse Voltage Test

Study on Frequency Domain Measurement of Coaxial Cable Connector's Time Domain Reflection Characteristic

A New Method for On-machine measurement of Roundness --Error Separation Technique of Parallel Three-probe Method in Frequency Domain

Study on Time-Domain and Frequency-Domain Characteristics of Partial Discharge and Interfere Signal in Ultra-Wideband

Comparison between the Analysis of the First-order RC Circuits in Time Domain and Frequency Domain

Design methods for frequency-domain equalization in OFDM transceivers with transmit diversity

Frequency Domain Axial Response of Pile Interact with Soil Layer inVertical Vibration and Its Applications

Parameter analysis of iterative frequency-domain deconvolution filter

Non-circular cutting experiments using amplitude-phase adjusting feed-forward control in the frequency domain

Frequency Response Characteristics and Frequency-domain Analysis in Low-strain Dynamic Testing of Piles

Chief Anti-jamming Technologies of Radar in Frequency Domain and Their Effectiveness Measurement

Construction of the Absorbing Boundary Conditions in Frequency Domain

Frequency Domain Correlation Acquisition Algorithm in GPS Software Receiver

continuous cast rolling; frequency response; frequency domain;

Frequency Domain Analysis for Bifurcation of Neuron Network Model with Distributed Delays and Strong Kernel

Transfer Matrix Method in Liquid and Solid Coupled Vibration Frequency Domain Analysis of Delivery Pipeline

Embedding and Detecting Algorithm for Image Watermarking in the Lowest Frequency Domain of Wavelet Transform

Interference cancellation for frequency domain equalization systems in time-variant channels

Frequency Domain Identification for Unmanned Helicopter

A Multiscale Associated Filter Combining Temporal Domain with Frequency Domain for Dynamic System

Simultaneous Measurement of Muscle Energy Metabolism by MRS and Frequency-Domain NIR Spectroscopy

Pharmacological evaluation on the different frequency domain of heart rate variability

The Relationship between Plasma Lipids and Frequency Domain Parameters of Heart Rate Variability in CHD and Healthy Men

Application of correlator in frequency domain for the LEO satellite-communication

decoding the mono audio channel encoding layer to obtain a mono audio channel decoding frequency domain signal;

Cross Correlation Function Based Time Delay Estimators Implemented in Frequency Domain

Periodic Assumption of Frequency Domain Method for Straightness Error Separation

Frequency - domain Equalization for OFDM Systems with Insufficient Cyclic Prefix

Study on Dynamic Spectrum and Its Frequency Domain Extracting Method

Identification of Low-Frequency Vibrations in Rotating Machinery from Time-Frequency Domain

Relative phase demodulation technique in frequency domain in projected grating phase method

Frequency domain analysis for line-to-ground fault location in frequency-dependent distribution lines

Real-time tracking of the state-information of mechanical system in frequency domain

On-line AC Sampling of the State-information of Mechanical Equipment in Frequency Domain

The Performance of Generalized Time-Frequency Domain Two Dimensional Spread Spectrum in AWGN Channel