We have applied here Fast Fourier Transform (FFT) algorithm, which reduces the number of computations from something on the order of N2 to N log N. The image is projected and transformed to a geometrically corrected image using mathematical projection & Fourier transformation equations based on ...
Application of the Fast Fourier Transform to Digital Audio Electrical and Acoustical Measurement Techniques (Perman - Bruel & Kjaer).pdfof,to,ac,the,Fast,Audio,and,fast,audio 文档格式: .pdf 文档大小: 8.81M 文档页数: 48页 顶/踩数:
Application of the Fast Fourier Transform to Digital Audio Electrical and Acoustical Measurement Techniques (Perman Bruel Kjaer)资料.pdf,APPLICATION OF THE FAST FOURIER 225 4 (A-13 ) TRANSFORM TO DIGITAL AUDIO ELECTRICAL AND ACOUSTICAL MEASUREMENT TECHN
APPLICATION ' THE FOURIER TO D IGITAL A U D I O AND ACOUSTICAL MEASUREMENT TECHNIQUES Andre and Instruments, California Foster the Anaheim has been from 01 the may the by Engineering East USA. rights not from AM PREPR
根据局部放电信号和窄带干扰的差异,提出了一种基于快速傅里叶变换(fast Fourier transform,FFT)和广义形态滤波器抑制窄带干扰的新方法.首先利用FFT得到窄带干扰的离散谱线,再利用基于数学形态学原理构造的广义形态滤波器将局部放电信号中的干扰滤除,最后进行傅里叶逆变换和小阈值处理以提取局部放电信号.仿真和实测数据的...
Wall interference corrections are evaluated from experimental wind tunnel wall pressure distributions using the Fourier solution for the Dirichlet problem in a rectangle. The series coefficients are computed by the fast Fourier transform, making the method very efficient and suitable as a practical wall ...
摘要: It is shown how fast Fourier transform techniques can be used to efficiently, numerically evaluate (convolution) integrals of the form often encountered in open resonator eigenmode calculations.DOI: 10.1364/AO.13.002326 被引量: 15 年份: 1974 ...
Good, I.J.: Polynomial algebra: an application of the fast Fourier transform. Nature 222 , 1302 (1969)Good, I.J. (1969). Polynomial algebra: An application of the fast Fourier transform. Nature , 222 , 1302.I. .I. GOOD,Polynomial algebra: an application of the fast fourier transform,...
Some examples of diffraction spots obtained by fast Fourier transform are shown.doi:10.1016/S0304-3991(85)80003-6M. TomitaH. HashimotoT. IkutaH. EndohY. YokotaElsevier B.V.UltramicroscopyM. Tomita, H. Hashimoto, T. Ikuta, H. Endon and Y. Yokota, Ultramicroscopy 16 (1985) 9–18...
(2014). Application of the joint fast Walsh Hadamard-inverse fast Fourier transform in a LDPC coded OFDM wireless communication system: Performance and ... T Deepa,R Kumar - 《Wireless Personal Communications》 被引量: 11发表: 2014年 Application of the Joint Fast Walsh Hadamard-Inverse Fast Fou...