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Reference: G. Proakis, Digital Communications, 3rd ed., New York: McGraw-Hill, 1995.
rcosine(x,B,Ns)
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B=0 Ns=8 hx=seq(-3*Ns,3*Ns,by=1) h=rcosine(hx,B,Ns) plot(hx/Ns,h, ylim=c(-0.2,1), xlim=c(-3,3), pch=19, cex=0.1, ylab="h", xlab="T", type="l") grid( col = "grey50", lty = "dotted")
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