chapter 2 problem solutions discrete time processing of continuous time signals sampling a problem 2 1 problem consider a sinusoidal signal xt 3cos1000t0 1 and let us sample it at ...
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...Chapter problem solutions discrete time processing of continuous signals sampling a consider sinusoidal signal xt cost and let us sample it at frequency f khz s determine expression for the sampled sequence xn xnt its fourier transform x dtftxn b xf ftxt c recompute from verify that you obtain same as in solution cos n equivalently using complex exponentials tnt j e therefore dtft becomes with jf t since fte ff then nb all recall are related xfkf k this case there is no aliasing frequencies contained within interval we can write hz substitute part to now property delta function any constant repeat when following steps notice have shown figure below an hzhz after everything follows fkf each where given rect d these problems use relation kf...