Table of Contents
Advertisement
DMD50 Universal Satellite Modem
C/N
Carrier Power (C) to Noise (N) ratio: Unit is dB
C/No
Carrier Power (C) to Noise Density (N
Co+No/No
Carrier Density (C
ratio: Unit is dB
C/N = C/N
– 10 log B [where B is bandwidth in Hz]
o
E
/N
= C/N
– 10 log R [where R is data rate in bits/sec]
b
o
o
= C/N + 10 log B – 10 log R
= C/N – 10 log (Spectral Efficiency)
E
/N
= 10 log (10
b
o
[Spectral Efficiency is in bps / Hz]
MN-DMD50 Revision 4
) ratio: Unit is dBHz
o
) + Noise (N
) to Noise Density (N
o
o
((Co+No/No)/10)
– 1) – 10 log (Spectral Efficiency)
)
o
Theory of Operation
3–41
Advertisement
Table of Contents
