They basically work like a collection of satellites with which we leverage trilateration
to determine the position of a smartphone.
The most basic algorithm used for positioning based on range estimation is trilateration
In the original DV-Hop algorithm, the trilateration
algorithm or the least squares method is applied to solve the multi-objective optimization problem and transform the location information for unknown nodes to coordinates.
The majority of localization algorithms assume a dense network trilateration
or multilateration can be organized.
In this Performance Task, there are four "explorations," the first of which helps students understand the deductive logic of trilateration
Xia and Chen  propose a TDOA-based localization scheme with mobile anchors in which the sensor nodes perform trilateration
to estimate their positions.
Using the photo trilateration
procedure, air coordinates were obtained for near vertical photo frames captured by a motorised 70mm Vinten reconnaissance camera.
Many localization algorithms first use a ranging technique to estimate the Euclidean distances between nodes, and then use the least-squares trilateration
(LST) algorithm to determine the locations of sensor nodes by these estimated distances .
Your location will not be able to be determined via trilateration
or any other method, keeping your position private and secure.
The basic techniques employed for location calculation are: Trilateration
Triangulation Maximum Likelihood (ML)
It should be emphasized that the solutions are not exactly the same as in case of classical trilateration
, since the computations are performed on a basis of double differences, using real satellite phase observations as reference.
Given the locations of the anchors and the correction factor, a node is then able to perform trilateration
to estimate its own location.