Locata公司技术概要技术概要.pdf

LOCATA CORPORATION Technology Brief 1. Locata Technology Overview Locata has invented a new, completely autonomous positioning technology. It creates terrestrial networks that function as a “local ground-based replica” of GPS-style positioning. Locata is not designed to replace GPS; it is a local extension and expansion of GPS. It works with GPS, but can also operate independently when GPS is not robust or completely unavailable. Instead of orbiting satellites, Locata utilizes a network of small, ground-based transmitters that blanket a chosen area with strong radio-positioning signals. Because it is terrestrially based and provides powerful signals, Locata can work in any internal or external environment. Not only does Locata integrate seamlessly with GPS, it simultaneously eliminates many GPS deficiencies. In truth, a LocataNet can completely replace GPS locally, if need be. There is nothing “global” about positioning in a warehouse, an open-cut mine or in a city. It is inherently a “local” requirement. However, before Locata, the only way to provide that service was via a GPS satellite system. A combined GPS-Locata receiver (see Fig 1 below), almost identical to a standard, professional GPS receiver, can acquire and seamlessly track both GPS and Locata signals. This dual functionality provides an optimum positioning solution by allowing a seamless transition between environments where a user can utilize Locata signals, GPS signals, or both. A Locata receiver therefore exploits the strong heritage and design of GPS, yet evolves the technology to a higher level. Locata provides precise range measurements and accurate position solution