Question

A modulation of Binary Phase Shift Keying (BFSK) can accomplished by simply
multiplying the original signal r(t) with the carrier signal. Assume that input bit
stream is r(t)=[1001] and carrier signal is c(t)= cos wt. With a suitable block diagram
and constellation diagram, analyze the concepts of the flow of signal from input r(t)
until the yield of output s(t) and determine the type of signaling produced by BPSK
modulation.

Answer 1

binary Phase GHft heging (spSk) BPSK Modulator Antenna Binany dta Bpsk form BPGK. stgnal 7s obtolned by Sinply maltipiying binary data. lyiną binary phase shift When CCE)= Loguat lgomultfplied by 1 80 phase Gh?ft volts it ctlt

Mathematt ral areferes entation, of BPSん5fgra Cos (cut to. glEE) binary I → -- ть 2Tb 七 BPSk Gignal 七 out of Deoing binary o's 8SK Signal will be 8o phage wtth

ical reparesantation of Bpsk Gignal and ar:イ2 Coms tell ati on dagrom

8PSK Demodtu lati en Note that in digttal omodul ation technique there coill be no amplifiex Local osallato maii pli ex 2 2 _ Co@wt Cogut-.--log → tenm fit ered out by Lou Pass fiitea due to Cog guot Big naL dom oclul ated. high dreqony (omgonant s Output