Kalman filter where does y_1 come from?

[Dustinsfl]

In this presentation, on page 7, they say due to noise \(y_1 = 0.9\). How or where did they get this value?

It isn't an article just a beamer presentation so going from page 1 - 7 is quick and easy.

 

[zzephod]

In this presentation, on page 7, they say due to noise \(y_1 = 0.9\). How or where did they get this value?

It isn't an article just a beamer presentation so going from page 1 - 7 is quick and easy.

It came out of the authors head, it is a hypothetical measurement that you might have gotten from the sensor. The $$y_i$$'s are the measurements (section 3 first sentence $${\bf{y}}=y$$ is the level of the float). So $$y_i$$ is the $$i$$ th observation (measurement) of the float level.

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