題組內容

4. (15%) A signal x(t) is periodic with period T0= 8. Therefore, it can be reproduced as a Fourier series:
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The Fourier series coefficients for this representation of a particular signal x(t) are given by the integral
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4.1 (5%) In the integral expression for ax above, the integrand and the limits define the signal x(t). Determine an equation for x(t) that is valid over one period.