4.5-3 Find Ls (1) and use (t) for the modulating signal m(t) B sinc (27 Bt) with B 1000 and carrier frequency we = 10, 000. Follow these do-it-yourself steps: %3D (a) Sketch spectra of m(t) and the corresponding DSB-SC signal 2m(t) cos wet. (b) To find the LSB spectrum, suppress the USB in the DSB-SC spcctrum found in (a). (c) Find the LSB signal Lsp (t), which is the inverse Fourier transform of the LSB spectrum found in part (b). Follow a similar procedure to find usn (1).

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(t) for the modulating signal m(t) = B sinc (27 Bt) with B 1000 and
PUSB
4.5-3 Find
PLSB
(1) and
carrier frequency we = 10, 0007. Follow these do-it-yourself steps:
(a) Sketch spectra of m(t) and the corresponding DSB-SC signal 2m(t) cos wet.
(b) To find the LSB spectrum, suppress the USB in the DSB-SC spcctrum found in (a).
(c) Find the LSB signal Lsp (t), which is the inverse Fourier transform of the LSB spectrum found
in part (b). Follow a similar procedure to find Pusn ().
Transcribed Image Text:(t) for the modulating signal m(t) = B sinc (27 Bt) with B 1000 and PUSB 4.5-3 Find PLSB (1) and carrier frequency we = 10, 0007. Follow these do-it-yourself steps: (a) Sketch spectra of m(t) and the corresponding DSB-SC signal 2m(t) cos wet. (b) To find the LSB spectrum, suppress the USB in the DSB-SC spcctrum found in (a). (c) Find the LSB signal Lsp (t), which is the inverse Fourier transform of the LSB spectrum found in part (b). Follow a similar procedure to find Pusn ().
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