MHB Interpreting a Block Diagram: How Should it be Read?

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The discussion focuses on interpreting a block diagram related to Kalman filtering. It highlights the ambiguity in how input signals (u) are processed with noise, as the diagram does not specify whether the noise is added or subtracted. Additionally, the flow of output signals (y) from the plant is also affected by sensor noise before entering the Kalman filter. Participants express uncertainty about the correct interpretation of the diagram, particularly regarding the handling of noise. Overall, clarity in the representation of signal processing in block diagrams is essential for accurate understanding.
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How do we interept what is going on in the block diagram?

We have u going in and being added or subtracted from noise but we arent giving the plus and minus to determine which it is. Then there is a branch off u going straight to the Kalman filter. Then y comes from the plant and is added or subtract to sensor noise and yv comes out and enters the Kalman filter with an output of ye. Additionally, we have a branch off y.

This is just from visualizing it but how should it be read?
 
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Can't say I'm an expert on Kalman filtering, though I've heard of it. I would say, though, that both noises are added to the incoming signals.
 

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