| Input: The set of undetermined sensors () in Phase 1. |
| Output: An initial set of sensors () with distances between each other |
| known. |
| Step 1: Choose the first element in to be the first element in . |
| Step 2: Repeat: |
| For each element in : |
| If it has given distances to all the elements in , |
| add it into . |
| End |
| End |