Research on Key Technologies of Indoor High-Precision Positioning Based on UWB

Although GPS has been widely used, it can only be used in the field of vision of GPS satellites, and can not effectively locate in the obstacle environment. In order to solve this problem, ultra wideband and ultra strong penetrability enable UWB to achieve accurate positioning indoors and on the ground. DTOA has been widely used in radar detection, remote sensing and measurement and control due to its high precision, high speed and high concealment. Because the traditional TOA location algorithm requires the whole system to use synchronous clock, DTOA is unnecessary, reducing the complexity of the system, so it is very practical to use DTOA in indoor location.