Regarding the Gaussian pulse of transmitter it says that the spectrum

is also gaussian.

I assume that it means the frequency spectrum.Can someone please

elaborate litle on the term "Gaussian frequency spectrum".

A Gaussian is a mathematical construct that is the same shape

in both the time domain and the frequency domain. Most other

functions are quite different. Typically, things that are isolated

events in one domain have broad extent in the other. Think of

a continuous sine wave in the time domain: It's spectrum is

just a single line. Conversely, a single narrow pulse in the time

domain has a broad spectrum. The Gaussian is sorta like

the "happy medium" in that it is fairly discrete but also fairly

extended, so it looks the same in both domains.

Note that a true Gaussian has infinite extent, so you will

probably never encounter one in the real world. (And how

would you know if you did?!) Usually, in order to get on

with our lives, we have to truncate the tails and accept

the consequences in the other domain.

Hope this helps!

Bob Masta

dqatechATdaqartaDOTcom

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