Personnel Tracking Where GPS Signals Are Not Available

Global Positioning Systems (GPS) originated in the 1950s and were developed to track ships crossing the oceans.  There have been significant developments since that time, including the launching of a constellation of GPS satellites specifically for global tracking purposes, as well as the significant increases in accuracy that made GPS useful for tracking vehicles and even people across land and sea.

Perhaps the development having the largest impact is the implementation of GPS technology on cheap microchips and their proliferation into many mainstream devices, like automobiles, handheld GPS tracking devices and even cell phones and radios. Maintaining position, location, and tracking of human and material assets from point to point has grown from a luxury to a need in operating efficient worldwide logistics and supply chain operations.

However, GPS does have inherent limitations.  GPS has a basic error coefficient of approximately 5 to 10 meters in non-military systems. Interruptions are common due to limitations of the RF signaling used to triangulate position and from gaps in the GPS coverage network. Generally, GPS signals cannot penetrate some materials - and gaps in coverage occur in mountainous areas, valleys, tunnels, dense urban environments and within buildings, etc.

For many applications there is a need for a tracking solution to overcome these GPS limitations that will continue to function in GPS-denied areas. Tracking people in structures, buildings, and in other areas where GPS is denied continues to be a major problem that has yet to be addressed in a mass deployment.

NAViSEER provides the solution for tracking personnel in GPS-denied areas!