Recursive Filters: SMA, EMA, Low‑Pass, and a Tiny Kalman

kkamilstaszewski 2 days ago 4 commentsRead Article on staszewski.xyz

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Discussion (4 Comments)Read Original on HackerNews

deepsun•about 4 hours ago

Too basic, I'm not sure anyone needs that to solve the task as basic would need to read an article, it's obvious.

> Tune by eyeballing lag vs. noise.

In any serious installations (more than a homelab) you want some numeric metrics, not eyeballing. E.g. management or next engineer may reasonably ask "why alpha is 0.8? what's the rationale, why not 0.85", you want some formula to show it's what we want.

jason_s•27 minutes ago

Ten Little Algorithms, Part 2: The Single-Pole Low-Pass Filter (https://www.embeddedrelated.com/showarticle/779.php)

Vaslo•about 3 hours ago

Too basic for who? You?

glouwbug•about 1 hour ago

Wait till he learns about PID controllers