for a project we need to find a certain position. The info we have : 3 surrounding positions and the distance between those positions and the point we are looking for.
We've got a setup like this going on : trillateration with circles
We came up with a solution : we connect the three circle centres making a triangle , we then proceed to calculate the weighted centroid of the triangle... Giving us the most approximate locations based on the circles.
What we are wondering though is that we are using raw GPS coordinates (lat/long like you'd pick from google maps) and use these in our calculations (only lineair equations and systems involved) ... but is this the correct way of doing it ? Should we convert these coordinates to carthesian points first to not have any distortions in our calculations ? (x,y) <--> (lat/long)