频域分析

Trussspar平台垂荡响应频域分析

Heave response analysis of Truss Spar in frequency domain

利用Matlab对处理后数据进行频域分析，并与理想仿真结果对比，验证了系统的正确性。

The correctness of the system is verified by processing data with Matlab on frequency domain analysis , compared with ideal simulation results .

线性时不变系统的频域分析及其MATLAB实现

Frequency - Region Analysis for Linear Constant System and Its MATLAB Realization

基于MATLAB的线性时不变控制系统频域分析程序设计

MATLAB-Based Frequency Domain Analysis Programing for LTI Control System

通过对低压降CMOS稳压器工作原理的分析，给出了一种频域分析模型。

A frequency-domain analytical model is given based on the operational principle of low dropout CMOS regulator .

第四章以滚动轴承故障诊断为例，提出了时频域分析与模糊RBF神经网络集成诊断策略。

The integrated method of time and frequency domain analysis and RBFNN is given for bearing fault diagnosis .

HRV分析包括时域分析和频域分析。

HRV data including time domain analysis and frequency domain analysis were analyzed .

复FFT频域分析方法，可以快速捕获载波，同时便于针对信号特征采取防边带错锁措施。

Complex FFT can accomplish carrier acquisition in a short time without error locking by analyzing in frequency domain .

豚鼠听觉通路不同平面毁损的ABR频域分析

Spectral Analysis of ABR with Destruction of Different Plane of Auditory Pathway in Guinea Pigs

老年及青年Wistar大鼠心电图QRS波时域及频域分析的比较研究

Comparison of the Time Domain and Frequency Domain of ECG-QRS Wave in Young and Aged Wistar Rats

基于LS-SVM回归的频域分析法及其在局放窄带干扰抑制中应用

Frequency domain analysis based on LS-SVM and its application in partial discharge narrow-band interference suppression

用自回归模型谱估计（AR谱）、功率谱以及相位谱对SOCAEP和LLAEP行频域分析。

The autoregression model spectrum assess , power spectrum and phase of SOC AEP and LL AEP were analyzed .

FFT变换是频域分析的基础和重要工具，实现从时域到频域的转换。

FFT is the basis of analysis in domain of frequency and useful tool . It makes signal turn from domain of time to frequency .

该程序用C语言编程，将时域一频域分析、绘图、打印结合为一体，可对各种类型的部分响应进行分析研究。

The program , which is coded in C , puts time and frequency domain analysis , graph display and plotting together into one integral unit , capable of analyzing and studying any kinds of partial response .

并充分讨论和分析了齿轮的各种振动信号分析方法，包括时域分析、频域分析和EMD分解方法以及各种时、频域特征提取的方法。

The analysis methods of vibration signals are discussed thoroughly , including time domain analysis , frequency domain analysis and EMD .

频域分析是各种动态信号处理的重要内容。本文基于Fourier分析和时序分析的极大熵谱估计理论，提出一种可用于诊断频域特征变化的时域特征参数。

Based on the maximum entropy spectrum theory of the time series analysis and the Fourier analysis , a time domain parameter for the diagnosis of frequency variation is proposed .

利用传递函数方块图模型，对前置级排量控制系统、转速控制系统、转矩控制系统分别进行频域分析，对比了PID校正前后的仿真曲线，分析了柔性环节对系统稳定性的影响及变化规律。

Using the transfer function block diagram model , frequency domain analysis has been made for prestage displacement control system , drive unit speed control system and loading unit torque control system .

结果DM自主神经病变（DAN）患者各时域及频域分析指标均较正常对照组降低（P<0.05或P<0.01）。

Results The parameters various time and territory of patients with DAN decreased compared with control group ( P < 0.05 or P < 0.01 ) .

通过相关分析、频域分析，采用高斯白噪声输入信号，可以对二阶Volterra模型进行辨识。

The two-order Volterra model can be identified with the correlation analysis and frequency-domain analysis when the input is Gaussian White noise .

实验数据表明，误差在允许的范围之内。其次，本论文提出了利用白光数字图像频域分析法标定CCD摄像机测量系统的实验方法。

The experimental results showed that the errors were acceptable . Secondly , the experimental method for camera calibration by white light digital image analysis in frequency domination area was presented .

Lyot晶体型消偏器设计判据的频域分析

Analysis of Design Criterion for Lyot Crystal-type Depolarizer in Frequency Domain

频域分析提示DM患者心脏自主神经系统失衡，交感神经张力相对增高，副交感神经活性相对降低；

In DM patients , there was a disbalance in heart autonomic system , showing that the tension of sympathetic nerve was relatively increased while that of parasympathetic nerve comparatively decreased .

分析了FFT变换域方法的基本原理和算法，根据窄带干扰的特点，提出了改进FFT滤波的频域分析算法；

The basic theory and arithmetic of FFT transform method is analyzed . The improved frequency analysis arithmetic of FFT filter is proposed according to the characteristic of narrow band interference .

该方法基于快速傅里叶变换（FFT）算法，从频域分析数据采集系统的失真和噪声，以及多通道间的同步性。

This method is based on Fast Fourier Transform ( FFT ) algorithm , analyses the distortion and noise of the data acquisition system in the frequency domain and the synchronization between the multiple channels .

说明了PID控制器是过程工业控制中应用最广泛的控制策略，且幅值裕度和相位裕度作为频域分析时常用的性能指标，可用于衡量系统的稳定性及相对稳定性。

PID control algorithm is widely used in industry process control . As the performance index of control system in frequency analysis , gain margins and phase margins can he used to represent the stability and relative stability of the control system .

目的：确定瞬态诱发耳声发射（TEOAE）频域分析的应用价值。

Objective : To determine the clinical value of analysis of frequency domain of transient evoked otoacoustic emissions ( TEOAE ) .

利用CO2激光深熔焊等离子体光信号的同轴检测系统，对工件板厚变化时激光焊接熔透状态的同轴光信号进行了时域和频域分析。

Using a coaxial monitoring system for detecting the optical emission in CO_2 laser beam welding , the time-field and frequency-field characteristics of the coaxial optical signals under different penetration statuses for welding of oblique plates were studied in this paper .

对束支阻滞时VLP阳性可靠性提出质疑，认为应结合频域分析加以鉴别。

To the dependability of VLP positive results of BBB we raise a query and consider that the analyse of frequency threshod should be used simultaneously .

该法对电缆绝缘接头处VHF和UHF信号的时域和频域分析可有效地识别被测电缆绝缘接头部内、外部的局放信号。

This method analyzes VHF and UHF signal of detected cable joint , using time and frequency analysis . This method can be used for detecting PD pulse inside or outside the insulating joint .

振动分析软件采用统一的Win32编程接口，多线程设计和模块化结构，可执行代码小，易于功能扩展；具有实时波形显示、实域频域分析、数据存盘等功能。

Vibration analysis software adopting Win32 API , multi-thread design and modular configuration has such functions as real-time wave display , real and frequency domain analysis , data store and so on .