| ??? 05/30/05 16:52 Read: times |
#94117 - Please elaborate more... Responding to: ???'s previous message |
Hi Joseph,
The rms (Root Mean Square) value of a signal, over a definite period, does not depend on it being sinusoidal, or even periodic for that matter. Then it depends on what? Obviously it depends on shape of waveform.. One point you missed: What if signal has AC+DC component ? then True RMS = sqrt( square(AC) + square(DC) ) Your reply is technically half-correct. By saying RMS value is independent of shape(sinusoidal) ...I really wonder what you want to say ??!!!?? The argument you may put in is: x1= some waveform x2= another waveform different in shape and freq. than x1 And RMS(x1) = RMS(x2) Now this does not mean it is independent of waveform shape. Whenever we compare something, we must have some fixed and common base. What was your base for comparing this? Can you elaborate it more. I'm not saying i'm right or u are wrong, But can you elaborate it more for better understanding? Now regarding your code suggestion.... Thank You. Problem: sqrt uses floating point. I want speed and hence integer format square root algorithm implementation is necessary. Anywayz, Thanks for the help. regards, Neil. |
| Topic | Author | Date |
| RMS Calculation | 01/01/70 00:00 | |
| Going back to basics... | 01/01/70 00:00 | |
| How Many Samples Per Second? | 01/01/70 00:00 | |
| Square Root Algorithm | 01/01/70 00:00 | |
| RMS for sinusoidal signals | 01/01/70 00:00 | |
| Clarification | 01/01/70 00:00 | |
| I beg a question... | 01/01/70 00:00 | |
| Full o' holes | 01/01/70 00:00 | |
Bang on target... | 01/01/70 00:00 | |
| thats true... | 01/01/70 00:00 | |
| RMS Value | 01/01/70 00:00 | |
| Please elaborate more... | 01/01/70 00:00 | |
| Elaboration | 01/01/70 00:00 | |
| Correction | 01/01/70 00:00 | |
| DC+AC RMS | 01/01/70 00:00 | |
| DC contribution to total rms value | 01/01/70 00:00 | |
| Thanx Anywayz... | 01/01/70 00:00 | |
| square root by Newton's Rule | 01/01/70 00:00 | |
| Lookup table | 01/01/70 00:00 | |
| better option...as of now | 01/01/70 00:00 |