NExt UAV – Precise relative positioning using low-cost GNSS coupled with INS, optical-flow and cooperative localization methods

Abstract

In addition to automatic or semi-automatic guidance of individual machines, guidance systems for swarms of machines are an increasingly important topic. An essential requirement for this is, especially when the machines are cooperating with each other in a close distance, to know the precise relative position between the machines and to determine the exact orientation of attachments or devices in relation to the machine. To ensure this task even under difficult environmental conditions with poor GNSS (Global Navigation Satellite System) reception, various technological approaches are possible. These approaches will be presented.