Howtosignalprocessing
- What is the Nyquist condition for zero ISI?
- How do you get zero ISI?
- What is the formula of Nyquist criterion?
- What does the Nyquist criterion tell us?
What is the Nyquist condition for zero ISI?
Consecutive raised-cosine impulses demonstrate the zero ISI property between transmitted symbols at the sampling instants. At t=0 the middle pulse is at its maximum and the sum of other impulses is zero.
How do you get zero ISI?
To achieve zero ISI, pulses can be shaped as sinc pulses, rectangular pulses, or raised cosine pulses.
What is the formula of Nyquist criterion?
According to Nyquist theory Z=N+P (for any system, whether it is stable or unstable). For the stable system, Z=0, i.e. No roots of characteristics equation should be at RHS. So for the stable system N = –P.
What does the Nyquist criterion tell us?
The Nyquist criterion states that a repetitive waveform can be correctly reconstructed provided that the sampling frequency is greater than double the highest frequency to be sampled.
