> I have a question on the power of SSB (Single side band) AM.
>
> if transmitted signal is expressed as:
>
> u(t)=Ac*m(t)*cos(2pi*fc*t) plus minus Ac*H[m(t)]*sin(2*pi*fc*t),
>
> Ac=carrier amplitude, fc=carrier frequency, m(t)=message signal, and
> H[m(t)] is Hilbert transform of m(t). What is the equation for
> received power (Pr) in terms of power of message signal (Pm)?
>
> Some books say Pr=[(Ac^2)*Pm]/4, but other books say Pr=(Ac^2)*Pm.
> Which is right??
>
> Thanks for the help. This problem is really killing me. =)
Do the math for m(t) = 1, keeping in mind that H[m(t)] = 0. Then you'll
know.
--
Tim Wescott
Wescott Design Services
http://www.wescottdesign.com
Reply by Bob●November 3, 20042004-11-03
I have a question on the power of SSB (Single side band) AM.
if transmitted signal is expressed as:
u(t)=Ac*m(t)*cos(2pi*fc*t) plus minus Ac*H[m(t)]*sin(2*pi*fc*t),
Ac=carrier amplitude, fc=carrier frequency, m(t)=message signal, and
H[m(t)] is Hilbert transform of m(t). What is the equation for
received power (Pr) in terms of power of message signal (Pm)?
Some books say Pr=[(Ac^2)*Pm]/4, but other books say Pr=(Ac^2)*Pm.
Which is right??
Thanks for the help. This problem is really killing me. =)