Baseband communication is the simplest form of analog communication.
We use analog communication techniques for analog message
signals, like music, speech, and television. Transmission andreception of analog signals using analog results in an
inherently noisy received signal (assuming the channel addsnoise, which it almost certainly does).
The simplest form of analog communication is
baseband
communication .
We use analog communication
techniques for analog message signals, like music, speech, andtelevision. Transmission and reception of analog signals using
analog results in an inherently noisy received signal(assuming the channel adds noise, which it almost certainly
does).
Here, the transmitted signal equals the message times a
transmitter gain.
An example, which is somewhat out of date, is the wireline
telephone system. You don't use baseband communication inwireless systems simply because low-frequency signals do not
radiate well. The receiver in a baseband system can't do muchmore than filter the received signal to remove out-of-band noise
(interference is small in wireline channels). Assuming thesignal occupies a bandwidth of
Hz (the signal's spectrum extends from zero to
), the receiver applies a lowpass
filter having the same bandwidth, as shown in
[link] .
We use the
signal-to-noise ratio of the
receiver's output
to evaluate any analog-message communication system. Assume that
the channel introduces an attenuation
and white noise of
spectral height
. The filter does not affect the signal component—we
assume its gain is unity—but does filter the noise,removing frequency components above
Hz. In the filter's output, the
received signal power equals
and the noise power
,
which gives a signal-to-noise ratio of
The signal power
will be
proportional to the bandwidth
;
thus, in baseband communication the signal-to-noise ratio variesonly with transmitter gain and channel attenuation and noise
level.
is it possible to leave every good at the same level
Joseph
I don't think so. because check it, if the demand for chicken increases, people will no longer consume fish like they used to causing a fall in the demand for fish
Anuolu
is not really possible to let the value of a goods to be same at the same time.....
Salome
Suppose the inflation rate is 6%, does it mean that all the goods you purchase will cost
6% more than previous year? Provide with reasoning.
Not necessarily. To measure the inflation rate economists normally use an averaged price index of a basket of certain goods. So if you purchase goods included in the basket, you will notice that you pay 6% more, otherwise not necessarily.
Good day
How do I calculate this question: C= 100+5yd G= 2000 T= 2000 I(planned)=200.
Suppose the actual output is 3000. What is the level of planned expenditures at this level of output?
I am Camara from Guinea west Africa... happy to meet you guys here
Sekou
ma management ho
Amisha
ahile becheclor ho
Amisha
hjr ktm bta ho
ani k kaam grnu hunxa tw
Amisha
belatari
Amisha
1st year ho
Amisha
nd u
Amisha
ahh
Amisha
kaha biratnagar
Amisha
ys
Amisha
kina k vo
Amisha
money as unit of account means what?
Kalombe
A unit of account is something that can be used to value goods and services and make calculations
Jim
all of you please speak in English I can't understand you're language
Muhammad
I want to know how can we define macroeconomics in one line
Muhammad
it must be .9 or 0.9
no Mpc is greater than 1
Y=100+.9Y+50
Y-.9Y=150
0.1Y/0.1=150/0.1
Y=1500
Kalombe
Mercy is it clear?😋
Kalombe
hi can someone help me on this question
If a negative shocks shifts the IS curve to the left, what type of policy do you suggest so as to stabilize the level of output?
discuss your answer using appropriate graph.