How can I remove DC component from EMG signal?

 the signal is :

y=EMG +5

I will design a FIR filter but how exactly can I remove the DC component ( 5 ) from y ??

Answer 1

[Honglei Chen]

If you know it's 5, why not simply

y - 5

If you don't know it's 5, then you can do

y = detrend(y)

HTH

[Christine Ak]

Thank You !!!

I'll try that .