Re: sensor data filteration
Hello!
Just a silly question. Your noise is a lot higher than your data.
And on top of that, your noise seems to be in steps of a fixed quantum.
Most of the noise is 1 steps, you have also peeks of 3, 4 steps, etc... I hope
you understand what I mean.
So here is my question: are you sure that the endianness of your signal is
right? It looks like for instance if your signal is 16 bit and if you invert
msb and lsb, you get that kind of signal. Could you try to invert your signal
samples?
If you know what is endianness, please skip the following lines.
For your information, on a PC, numbers are written in little endian. Which means
"little end come first". Example, if you want to write 0x0100 (or 256) in memory,
you need 2 bytes. The first will be 00 and the second 01.
Suppose you have a signal of 256 and a noise of 3 lsb. In this case, you
would get numbers between 0x00FD and 0x0103.
If you represent this on a graph the wrong way (little end first), then you will
get get large steps for the noise and a tiny signal..
Dora.