1)DIT-FFT按时域抽取的快速傅立叶变换
1.Based on basic characteristics of fluctuating wind and in order to increase the calculation speed,superposition harmonic method adopting the DIT-FFT technology in time domain was presented.为提高计算速度,提出采用按时域抽取的快速傅立叶变换算法来改进谐波合成法,仿真结果表明模拟风速谱与目标风速谱吻合很好,且计算速度大幅提高,可为输电塔线的抗风研究提供参考。
2)MFFT改进的快速傅立叶变换
3)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
英文短句/例句
1.rapid Fourier transform NMR correlation spectroscopy快速傅立叶变换核磁共振相关波谱法
2.The Algorithm with Image Data Compression of FFT快速傅立叶变换的图像数据压缩算法
3.Study of Image FFT by GPU基于GPU的图像快速傅立叶变换研究
4.A Fast Image Hiding Algrithm Based on Fast Fourier Transform一种基于快速傅立叶变换的图像快速隐藏算法
5.A FAST FOURIER TRANSFORMATION BASED SECOND ORDER RELIABILITY METHOD基于快速傅立叶变换的二阶可靠度分析方法
6.The application of fast Fourier transformation in spin dynamic simulation快速傅立叶变换在自旋动力学模拟中的应用
7.Application of fast fourier transform in sum-product decoding of non-binary LDPC codes快速傅立叶变换在多进制LDPC码译码中的应用
8.NONEQUISPACED FAST FOURIER TRANSFORM ON PARALLEL HEXAGON平行六边形区域非均匀节点快速傅立叶变换
9.The application of nonuniform fast Fourier transforms for audio coding非均匀快速傅立叶变换在音频编码中的应用
10.Application and Implementation of FFT/IFFT Based on Mixed Radix in VDSL2 System基于混合基算法的快速傅立叶变换和反变换在VDSL2中的应用与实现
11.Harmonic Analysis of Power Grid Based on Wavelet Transform and Fast Fourier Transform基于小波变换和快速傅立叶变换的电网谐波分析
12.In addition, the emphasis of the thesis is the use of Fast Fourier Transform (FFT) in reactive power compensation.研究的另一个重点是快速傅立叶变换在无功补偿中的应用。
13.Application of Fast Fourier Transform Method for Noise Smoothing and Determination of Weak Chromatographic Signal快速傅立叶变换用于色谱噪声平滑及微弱信号的检测
14.Applications of Green Function-Complex Conjugate Gradient Method-Fast Fourier Transform in Near-field Optics Images;格林函数—共轭梯度法—快速傅立叶变换在近场光学成像中的应用
15.Implementation of Fast Fourier Transforms on Digital Signal Processors;快速傅立叶变换在数字信号处理器上的实现研究
16.fast-Fourier-transform analyzer快速傅里叶变换分析仪
17.Goertzel algorithm is a fast algorithm of DFT.戈泽尔算法是离散傅立叶变换的一种快速算法。
18.convolution with FFT利用快速傅里叶变换的卷积
相关短句/例句
MFFT改进的快速傅立叶变换
3)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
4)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。
5)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。
6)fast Fourier transformation快速傅立叶变换
1.A study was performed on the PIV algorithm based on fast Fourier transformation(FFT),and the PIV program was compiled and verified.在粒子图像测速原理的基础上研究了基于快速傅立叶变换的粒子图像测速算法,并编制算法程序进行验证。
2.A leakage point positioning systerm is developed,which is based on correlation analysis of fast Fourier transformation for locationing the leakage in the pipe.针对管道漏点定位问题,研制出了一套基于快速傅立叶变换的相关分析法管道泄漏点定位系统。
3.A calculation method based on fast Fourier transformation and micromagnetism(FFTM) is presented.提出了一种具有快速傅立叶变换的微磁学(FFTM)方法,并应用于二维纳米磁性系统。
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