1) FFT-IFFT
快速傅立叶正-逆变换
1.
Then,the transient response of a LPS was obtained with the aid of FFT-IFFT.
采用传输线模型对防雷系统进行等效,并使用快速傅立叶正-逆变换(FFT-IF-FT)在频域内对模型进行求解,在求解过程中,使用矢量矩阵束方法对暂态电流的频域响应进行外推,只需求解有限频率点上的计算即可求解整个频域内的电流瞬态响应。
2) IFFT
快速傅立叶逆变换
1.
The radix-2 decimation-in-time algorithm based on 16-bit fixed-point operation and pipeline architecture are adopted in the core module IFFT(Inverse Fast Fourier Transform).
核心模块快速傅立叶逆变换(IFFT)采用基于16位定点运算的基-2时间抽取算法和流水线结构。
3) Inverse Fast Fourier Transform
快速傅立叶逆变换(IFFT)
4) FFT
快速傅立叶变换
1.
Roll eccentricity compensation control based on FFT;
基于快速傅立叶变换的轧辊偏心补偿控制
2.
The Implementation of Fast Fourier Transform (FFT) in DSP;
快速傅立叶变换(FFT)在数字信号处理器(DSP)上的实现
3.
The Analysis of the Phase-Shift Error of the PMP Phase-Shift Device Using FFT Method;
利用快速傅立叶变换分析PMP相移机构的相移误差
5) fast Fourier transform
快速傅立叶变换
1.
Two different dot superimposition images processed by fast Fourier transform ( FFT) are compared and analyzed particularity.
通过对线条形网点图像的实际打样与“欧几里得”网点打样样张的比较,重点阐述了线条形网点在印刷复制过程中的网点频率传递特性,在论述中,笔者对采用快速傅立叶变换后获得的网点叠印图像的频谱进行了较为细致地分析,得出影响人眼观察印刷图像的主要频率值及其原因。
2.
For the research on Milankovitch cycle of the Permian Changxing formation in northeastern Sichuan basin,the frequency spectrum of logging curves was analyzed with fast Fourier transform function offered by Matlab language.
为了研究川东北地区上二叠统长兴组中的米兰科维奇周期,采用Matlab提供的快速傅立叶变换数学函数,对该区测井曲线的频谱进行了分析。
3.
Theory and character of Fast Fourier Transform or Moment Invariants were studied and algorithm of image feature extraction based on FFT and moment invariants was put forward and applied to classification of surface defects of medium and heavy plates.
研究了快速傅立叶变换、不变矩的原理及特点,并应用于热轧中厚板表面缺陷图像特征提取。
6) Fast Fourier Transform(FFT)
快速傅立叶变换
1.
The arithmetic operation load is about half of that in the Fast Fourier Transform(FFT) algorithm.
利用快速Hartley变换算法求解鳞状因子循环实线性方程组,该算法比快速傅立叶变换(FFT)减少近一半的计算量。
2.
A new method has high precision and efficiency to solve the structural dynamic equation is obtained by combining the numerical particular solution of nonhomogeneous equation solved by fast Fourier transform(FFT) with the gene.
离散结构动力方程为差分方程,并假设始、末时刻位移已知,将初值问题形式上转化为边值问题,然后利用快速傅立叶变换(FFT)进行求解,从而得到非齐次结构动力方程的一个数值特解。
3.
The rubbing was identified by processing vibration signals using fast Fourier transform(FFT),understanding color maps by point of energy,and also combining time-domain charts,frequency charts and waterfall maps.
该方法以快速傅立叶变换法处理测振信号,以能量的观点理解振动色谱图,并结合时域图、频谱图和瀑布图对转子是否存在碰磨做出判断。
补充资料：快速
速度快的；迅速：～照相机ㄧ～炼钢ㄧ～行军 ㄧ～育肥。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条