Recently, there is an increasing interest in accurate location finding
techniques and location based applications for indoor areas. The Global
Positioning System (GPS) and wireless enhanced 911(E-911) services also
address the issue of location finding. However, these technologies
cannot provide accurate indoor geolocation, which has its own
independent market and unique technical challenges.
Despite extraordinary advances in global positioning system (GPS) technology, millions of square meters of indoor space are out of reach of GPS satellites. Their signals, originating high above the earth, are not designed to penetrate most construction materials, and no amount of technical wizardry is likely to help. So the greater part of the world's commerce, being conducted indoors, cannot be followed by GPS satellites.
Despite extraordinary advances in global positioning system (GPS) technology, millions of square meters of indoor space are out of reach of GPS satellites. Their signals, originating high above the earth, are not designed to penetrate most construction materials, and no amount of technical wizardry is likely to help. So the greater part of the world's commerce, being conducted indoors, cannot be followed by GPS satellites.
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