What is the term Eb/No used for?

[venkat3271]

Hey,
Can anyone tell, what is the term used for Eb/No???..
Is it same as SNR??

 

[Azulykit]

Re: Eb/No

Take a look at "Digital Communications", Bernard Sklar for a detailed discussion. (I only have a paper copy.)

SNR is an analog communication figure of merit. It has a digital counterpart, Eb/No, where Eb is the signal power S, times the bit time, Tb. No is noise power spectral density, and can be described as noise power N divided by bandwidth W. This is a quote from page 117 of Sklar's book near equation 3.29 .

I recommend that you run down a copy of the book and read the applicable sections.

You might also want to take a look at this thread:

 

[chickoos]

Re: Eb/No

Hi,

Eb/N0 is the ratio of energy contained in a symbol of duration say T to the noise power spectral density. It is the digital counterpart of SNR.

 

[kastantin]

Re: Eb/No

Eb is the signal in one bit and N0 is power specral density of the noise
for calculate SNR u must:
calcul the power of noise = B*N0, wher B is the bandwith of reciever
calcule the power of the signal = Eb/Tb, wher Tb is the bit transmission interval

 

[xakker]

Re: Eb/No

read sklar for accurate answer . neways eb/no is a normalized version of SNR for digital systems . normalized by bit rate aand bandwidth. it is also dimension less