0
\$\begingroup\$

enter image description here

[Marcel Pelgrom, Analog-to-Digital Conversion]

Hi,

I'm a bit confused on how the author here derives the quantization power from the sawtooth wave. How exactly is he integrating using values from the y-axis? I attempted it by splitting a single sawtooth period into two triangles and calculating area, however my answer is different: enter image description here

\$\endgroup\$
1
  • \$\begingroup\$ Can you show your integral? \$\endgroup\$ May 18, 2020 at 5:47

1 Answer 1

3
\$\begingroup\$

The Y axis in that plot is amplitude. The book integrates the amplitude squared because it is calculating the noise power (remember, power is proportional to amplitude squared).

You took the absolute value of amplitude, but didn't square it, so you now have the average absolute energy of the error.

\$\endgroup\$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.