FT Digital Filtering: Simulating Fourier Transform Apodization via Excel
نویسندگان
چکیده
منابع مشابه
Analysis of the asymmetric apodization using the fractional Fourier transform
The e ect of asymmetric apodization is analysed using the fractional Fourier transform. The focusing properties of an apodizing pupil mask are investigated by means of a simple display in a generalized phase-space (or x±p domain). Some comparative computer simulations are performed and curves displaying the Strehl ratio versus defocus are presented in order to illustrate the possibilities of o...
متن کاملFourier transform infrared (FT-IR) spectrometry.
Plants have a large capacity to transfer water and associated contaminants from soil to atmosphere. We measured the transfer rate for a range of constituents of gasoline that vary in volatility, solubility, and octanol/water partition coefficient. We tested benzene, toluene, ethyl benzene, meta-xylene, 1,2,4-trimethyl benzene, cyclohexene, n-pentane, ethyl ether, n-propyl ether, and t-butyl met...
متن کاملFast Approximate Fourier Transform via Wavelets Transform
We propose an algorithm that uses the discrete wavelet transform (DWT) as a tool to compute the discrete Fourier transform (DFT). The Cooley-Tukey FFT is shown to be a special case of the proposed algorithm when the wavelets in use are trivial. If no intermediate coeecients are dropped and no approximations are made, the proposed algorithm computes the exact result, and its computational comple...
متن کاملDigital computation of the fractional Fourier transform
An algorithm for efficient and accurate computation of the fractional Fourier transform is given. For signals with time-bandwidth product N , the presented algorithm computes the fractional transform in O( N log N ) time. A definition for the discrete fractional Fourier transform that emerges from our analysis is also discussed.
متن کاملSimulating the Quantum Fourier Transform with Distributed Computing
In this paper a new approach for quantum computer simulations is presented. The proposal is creating a simulator where the main concern is not simply the results of the algorithm for a given input. Instead, this simulator will imitate, as close as possible, the internal behavior of a real quantum computer. In order to do that, Distributed Computing is necessary.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Chemical Education
سال: 2008
ISSN: 0021-9584,1938-1328
DOI: 10.1021/ed085p1151