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Message ID: 73     Entry time: Tue Aug 2 16:00:32 2016
Author: Gabriele 
Type: Electronics 
Category: Characterization 
Subject: More on the signal jumps 

So I’m sending a 1.123 Hz sinusoid into the ADC, and generating 3.123 Hz sines and cosines in the model. Frequencies are reasonably incommensurable with one second.

The plots below shows all three signals. In the top panels, I just separate the two segments in each second: the “normal” segment in blue, and the “jumped” segment in orange.
In the bottom panels, I took the jumped segments (orange) and shifted them “in the future” by exactly one second. The signals are perfect!
 
I think we could explain this if the order of the samples in each second is scrambled, like we have a circular buffer but we point to the wrong starting point…
 
 
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