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Communication of SignalsQuestion and Answers: Page 1

Question Number 202771 Answers: 1 Comments: 0

determine whether this signal is periodic or not if it′s periodic specify it′s faundemwntal period y(n)=cos((n/8))cos(((nπ)/8))

$${determine}\:{whether}\:{this}\:{signal}\:{is}\:{periodic} \\ $$$${or}\:{not}\:{if}\:{it}'{s}\:{periodic}\:{specify}\:{it}'{s}\: \\ $$$${faundemwntal}\:{period} \\ $$$${y}\left({n}\right)={cos}\left(\frac{{n}}{\mathrm{8}}\right){cos}\left(\frac{{n}\pi}{\mathrm{8}}\right)\: \\ $$

Question Number 170917 Answers: 0 Comments: 0

consider g(t)=6sinc(6t) plot the spectrum DSB-LC signal S_(AM) (t)=g(t)cos(200πt)

$${consider}\:{g}\left({t}\right)=\mathrm{6}{sinc}\left(\mathrm{6}{t}\right) \\ $$$${plot}\:{the}\:{spectrum}\:{DSB}-{LC}\:{signal} \\ $$$${S}_{{AM}} \left({t}\right)={g}\left({t}\right){cos}\left(\mathrm{200}\pi{t}\right) \\ $$

Question Number 169751 Answers: 0 Comments: 0

find the forier transform of g(t)=cos^2 (2π f_c t)

$${find}\:\:{the}\:{forier}\:{transform}\:{of} \\ $$$${g}\left({t}\right)=\mathrm{cos}^{\mathrm{2}} \left(\mathrm{2}\pi\:\mathrm{f}_{\mathrm{c}} \:\mathrm{t}\right)\:\:\: \\ $$

Question Number 163985 Answers: 0 Comments: 0

Question Number 163978 Answers: 0 Comments: 5

Question Number 159868 Answers: 1 Comments: 0

prove that ∫_(−∞) ^(+∞) δ(t)dt=1 δ(t) is dirac delta function (impluse function)

$${prove}\:{that} \\ $$$$\int_{−\infty} ^{+\infty} \delta\left({t}\right){dt}=\mathrm{1} \\ $$$$\delta\left({t}\right)\:{is}\:{dirac}\:{delta}\:{function}\:\left({impluse}\:{function}\right) \\ $$

Question Number 158182 Answers: 1 Comments: 1

Question Number 107350 Answers: 1 Comments: 0

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