Local outdoor positioning system
<p>I am trying to create a local positioning system with a accuracy of less than half a meter. I live in an area with poor cellular coverage(none) and I am in need of a system which would be able to track an object moving around near my house/surrounding area, this object could be a animal such as a cat or dog. I have looked at RTK, but they are too expensive, INS have to much drift over a long period. The garden around my house has trees bushes and a old barn which will stop line of sight solutions.</p>

<p>I want to be able to use an arduino or raspberry pi, and I want to keep the project under £100. If there are any systems that might work please respond.</p>

<p>Many thanks</p>