measuring Error Vector Magnitude

Status
Not open for further replies.
N

nxing

Advanced Member level 1
Joined
May 10, 2004
Messages
421
Helped
25
Reputation
50
Reaction score
10
Trophy points
1,298
Location
China
Activity points
2,856
Hello everybody,

Does anybody know how to measure the error vector magnitude (EVM) in the dqpsk modulation system?

I have my I&Q signal(discrete), then pass raised-cosine filter, then D/A and final, upconverter to some RF frequency. And now, I want to test the distortion of my circuit so that I need to downconvert and demodulate the I, Q signal to discrete form. does anybody know how to do that?

Thanks!
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…