Abstract: A cloud-offloaded GNSS (CO-GNSS) positioning method for locating a connected object. The signal received by the object is translated to an intermediate frequency before being sampled. The connected object acquires the satellites and estimates the code phases, which are transmitted to the server and then time-stamped. The server then determines a set of candidate points of a mesh network seeing the same set of satellites at the time-stamping instant of the packet, and then calculates for each candidate point and each possible transmission time the differences in pseudorange between the satellites and this point. It deduces from same a likelihood metric as a function of the difference between the differences in pseudorange corresponding to the code phases estimated for the object and those calculated for each candidate point. The candidate point maximising the likelihood metric provides a rough estimate of the position of the connected object.

Abstract: This invention relates to a system and a method of positioning along the length of a cable. The positioning system (100) comprises the radiating cable (110), and also GNSS generator (120) generating the first and second GNSS signals, first injection module (131) to inject the first GNSS signals into a first end of the cable, and second injection module to inject the second GNSS signals into the second end of the cable. The first (second) GNSS signals are defined as signals that would be received at a point located at a first (second) virtual end of the cable, in an open sky configuration, from a first (second) set of satellites visible in a first (second) visibility cone.