A difficult decision to make when displaying measurement values is how much damping to apply. Too much damping and you will miss rapid changes in conditions. No damping and quickly changing digital displays become very difficult to interpret. One solution to this dilemma is to dampen all digital numbers, but to show both dampened and undampened values on analog displays. In this system, we use by default a running average over the last 4 seconds for damping. The running averages are recalculated each time a new value is received (10 times per second).
The following figures present around 19 seconds of data recorded during a beat (in an under-canvassed and badly trimmed boat, I must admit...). The dampened data is plotted in red over the real-time data.
Apparent wind angle (AWA)
True wind angle (TWA)