| ??? 11/16/05 16:24 Read: times |
#103808 - Agreed Responding to: ???'s previous message |
Frieder said:
Median filter is very adequate to sort out individual misreadings, where a linear filter (like averaging) will have its problems. Of course! But how to find out what is an "individual misreading" and what comes from strong periodic interference? This can only be interpreted when doing some statistics. But for this you need a large number of samples. Then you can try to fit a Gaussian curve and then you can better see, what seems to be a real individual misreading, what seems to be a periodic interference and what seems to be statistic noise. Each methode has its pros and cons. The mess is to find out, what is suited and what's not. And in our application removing certain samples was the wrong way to deal with a signal that was superimposed by a relevant periodic interference. That's the only thing I wanted to mention. Regards, Kai |
| Topic | Author | Date |
| Weight Scale Avarging method | 01/01/70 00:00 | |
| Filter providing two time constants | 01/01/70 00:00 | |
| median filter, simulate algo on PC | 01/01/70 00:00 | |
| Periodic interference can make them fail | 01/01/70 00:00 | |
| Acknowlegded. | 01/01/70 00:00 | |
| Agreed | 01/01/70 00:00 | |
| 50Hz sampling | 01/01/70 00:00 | |
| Anti-aliasing filter will help | 01/01/70 00:00 | |
| what this is all about | 01/01/70 00:00 | |
| Moving average window. | 01/01/70 00:00 | |
| Average on condition | 01/01/70 00:00 | |
| is that not SOP (standard operating proc | 01/01/70 00:00 | |
| Hallelujah! | 01/01/70 00:00 | |
| meaningless | 01/01/70 00:00 | |
| What are you using that one for in a wei | 01/01/70 00:00 | |
hello from chhatraliamd for weight scale | 01/01/70 00:00 |