6 - Fourier Transform 2: Difference between revisions

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New page: Reviewed Nicks 2nd Fourier transform made comment about one possible error other than that looked good
 
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Reviewed Nicks 2nd Fourier transform made comment about one possible error other than that looked good
(a) Show <math> \mathcal{F} \left[ \int_{- \infty}^{t} s(\lambda ) \,d\lambda \right]  = \frac{S(f)}{j2 \pi f} \mbox{ if } S(0) = 0 </math>. '''Hint''': <math> S(0) = S(f) | _{_{f=0}} = \int_{- \infty}^{\infty} s(t)e^{-j2 \pi (f \rightarrow 0)t} \,dt = \int_{- \infty}^{\infty} s(t) \,dt </math>
 
 
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(b) If <math> S(0) \neq 0 </math> can you find <math> \mathcal{F}\left[ \int_{- \infty}^{t} s(\lambda ) \,d\lambda \right] </math> in terms of <math> \displaystyle S(0) </math>?
 
 
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(c) Do another property on the Wiki and review a second property
 
(a) to come
 
(b) to come
 
(c)
 
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ii)Reviewed Nicks 2nd Fourier transform made comment about one possible error other than that looked good

Revision as of 21:59, 2 November 2009

(a) Show [ts(λ)dλ]=S(f)j2πf if S(0)=0. Hint: S(0)=S(f)|f=0=s(t)ej2π(f0)tdt=s(t)dt




(b) If S(0)0 can you find [ts(λ)dλ] in terms of S(0)?




(c) Do another property on the Wiki and review a second property

(a) to come

(b) to come

(c)

i)

ii)Reviewed Nicks 2nd Fourier transform made comment about one possible error other than that looked good