Recent content by Whoohw

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    Signal to Noise Ratio: Questions for my multimedia and signals class

    Thats what I keep thinking, but i that isn't what the problem has in the notation.
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    What Role Do Ck and k=1 Play in Fourier Series?

    I'm lost as to what the significance of the n=1 term could be over any other term then, other than the most dominant?
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    Solving Sampling Frequencies: Discrete Time Signal & Nyquist Frequency

    Homework Statement x(t) = 3*sin(1000*pi*t) Suppose that the signal is sampled at a rate of fs = 2000Hz. What is the discrete time signal obtained after sampling (i.e., the signal expressed as a function of sample number n, x[n]) What discrete time frequency, f-hat will the signal x[n]...
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    What Role Do Ck and k=1 Play in Fourier Series?

    Homework Statement Consider the following equation for the Fourier series: f(t) = SUM k=1->infinity (Ck * sin(k*pi*t) What is the meaning of the Ck terms? What is the importance of the K=1 term? Homework Equations The Attempt at a Solution Ck = Fourier Coefficents. They are...
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    Signal to Noise Ratio: Questions for my multimedia and signals class

    Question one Homework Statement x[n] = 5sin(0.22*pi) The root mean square (RMS) value eof a sin wave is known to be A/root(2) where A is the amplitude. If the noise in a system is known to have an RMS value of 0.5, what si the signal to noise ration (in dB) of the x[n] in this syetem...