What is the point of digital voice?
"rickman" wrote in message
...
On 2/25/2015 5:39 AM, gareth wrote:
"rickman" wrote in message
...
I thought it might be that, but it still makes no sense to me. Who or
how
does changing the direction of rotation of a rotating vector change its
"size". Are you defining size as the rotation so that going from a + to
a - is like reversing the direction of a vector? I think most people
would consider the "size" of a vector to be the magnitude which is
independent of phase angle and so rotation, no?
Perhaps you can explain this with a little math?
Not my gibberish, refer to the original posting ...
-----ooooo-----
From: "Brian Reay"
Newsgroups: alt.engineering.electrical,uk.radio.amateur
Subject: Phase noise
Date: Sat, 13 Dec 2003 10:21:54 -0000
Message-ID:
The term e^(-jwt) isn't some magical time machine relating to "minus
time", e^(-jwt) is simply another way of writing 1/(e^jwt)
which
is a value that decreases as t increasing.
Yeah, well this is not really correct unless I misunderstand what you mean
by "decreases". When the j factor is included in the exponent of e, the
function changes dramatically so that it does *not* exponentially decrease
in magnitude as t increases.
WHS
|