[tahanteada]

Taas siis uus idee jaapanlastelt ning loodetavasti viivad nad selle idee ka ellu:
Japan’s Plan for Centimeter-Resolution GPS
A $1.2 billion system of satellites and ground stations would give unprecedented accuracy

A stranger to Tokyo could easily get lost in its urban canyons. And GPS navigation, stymied by low resolution and a blocked view of the sky, might not be much help. But that won’t be the case after 2018. Engineers at Tokyo-based Mitsubishi Electric Corp. report that they’re on track to start up the first commercial, nationwide, centimeter-scale satellite positioning technology. As well as spot-on navigation, the technology will also usher in a variety of innovative new applications, its proponents say.

Named Quazi-Zenith Satellite System (QZSS), it is designed to augment Japan’s use of the U.S.-operated Global Positioning System (GPS) satellite service. By precisely correcting GPS signal errors, QZSS can provide more accurate and reliable positioning, navigation, and timing services.

Edasi lingil:
http://spectrum.ieee.org/aerospace/satellites/japans-plan-for-centimeterresolution-gps