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![傅立葉聲音合成器 ( Fourier Synthesis） 傅立葉級數]()
www.phy.ntnu.edu.tw傅立葉聲音合成器 (Fourier Synthesis） 傅立葉級數 任何一種形狀的波形 都可以由不同頻率的正弦波依照不同強度比例合成而得到。 如果波形本身是個週期性的波，頻率為 f （形狀任意）f(t) 則 此波形 f(t) = ΣA n sin( n 2πf t + ψ n) 其中係數 A n 與 ...瀏覽：327 -
![Fourier transform - Wikipedia, the free encyclopedia]()
en.wikipedia.orgThe Fourier transform (English pronunciation: / ˈ f ɔər i eɪ /), named after Joseph Fourier, is a mathematical transformation ... — A Matlab tutorial (thefouriertransform.com) (Tip: drag magnitude or phase dots up or down to change the wave form). (Java A瀏覽：1350
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日期：2025-04-28
In mathematics, a Fourier series (English pronunciation: /ˈfɔərieɪ/) is a way to represent a wave-like function as the sum of simple sine waves. More formally, it decomposes any periodic function or periodic signal into the sum of a (possibly infinite) se...
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日期：2025-05-03
... and Byerly (1959, p. 51). One of the most common functions usually analyzed by this technique is the ......
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日期：2025-04-30
Square Wave Fourier Coefficients d = 0.50; % duty cycle coeff = @(k) d*sinc(k*d); M = 11; yc = zeros(M,1); idx = 1:2:M; load square.mat fprintf('%2s %10s %10s %8s %8s\n', 'k', 'ck (V)', 'ck (dB)', 'calc (dB)', 'meas (dB)'); for k=idx c = abs(coeff(k))...
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日期：2025-05-04
As promised in the first part of the Fourier series we will now demonstrate a simple example of constructing a periodic signal using the, none other then, Fourier ... which resambles the square wave but we are not satisfied so lets try changing the number...
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日期：2025-04-29
Computing the complex exponential Fourier series coefficients for a square wave. Part 1. More instructional engineering videos can be found at http://www.engineeringvideos.org. This video is licensed under the Creative Commons BY-SA license http://creativ...
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日期：2025-04-29
The Fourier Series is a weighted sum of sinusoids. The weights or coefficients are given on this page. ... All of these represent the correlation of the function f(t) with the basis sine and cosine functions. For the specific square-wave f(t) of Figure 1,...
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日期：2025-05-03
The Fourier Series, evaluated in a complex form, using complex coefficients, is shown. ... The previous page on Fourier Series used only real numbers. In engineering, physics and many applied fields, using complex numbers makes things easier to understand...
Fourier Series Coefficients: Representation of a Function by a Series of Orthogonal Functions - YouT
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日期：2025-05-03
Fourier Series Coefficients: Representation of a Function by a Series of Orthogonal Functions. In this video, I talk about a formula to find the coefficients of a series with respect to an orthogonal set of functions. This formula is useful as this is the...
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