Hi,
I saw in a video (See the screenshot above) that the distance of target is extracted by assuming a normal distribution, and for L5 sensor, we can get sigma (See the second screenshot above).
My question is, do the received range sigma means the sigma of that normal distribution?
The sigma is an indication of how well the photons are grouped. A nice flat target will return a small sigma. A complex target (possibly 2 objects closer than 60cm apart but both in the Field of View) will return a large sigma. It's basically a warning that the scene is not a flat wall here, but a more complex shape.
And yes, it's very similar to the statistical sigma.
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