Sunday, November 10, 2013

Fundamentals about GPS Tracking Software

Cell Phone Tracker Fundamentals – GPS Technological Discussion To conform to Federal Communications Commission rules, cell phone companies are required to be in a position to provide authorities with device latitude and longitude to an precision of 50 to 300 meters. Cell Tower Triangulation isn’t going to always satisfy this requirement. For comparison, commercially available GPS modules are able to achieve accuracy down to less than 10 meters. This hinges on many factors, as GPS signals are often really weak and are influenced by numerous factors. With Mobile Location Services (MLS), the GSM cell network provider uses triangulation algorithms to calculate the location of the smartphone, its accuracy is proven to be much worse than that of GPS. MLS is also impacted by factors similar to GPS in the sense of the interference affecting signal strength and the density of GSM towers to help in the triangulation effort. In rural areas location accuracy may be off as much as a mile. GPS receivers, irrespective of whether within a handset, or perhaps a specific GPS tracking device, determine location by precisely timing the signals transmitted by GPS satellites. This critical information consists of the moment the message was sent, accurate orbital data (formally called the ephemeris), and also the basic system state and rough orbits of all GPS satellites (technically referred to as the almanac). GPS receivers often take a long time to become ready to navigate after being turned on because it must acquire some basic information in addition to capturing GPS satellite signals. This slow start can be caused if the GPS smartphone has been turned off for days or weeks, or has been transported a significant distance while unused. The GPS must update its almanac and ephemeris data and store it in memory. The GPS almanac is a set of data that every GPS satellite transmits. When a GPS receiver has current almanac data in memory, it can acquire satellite signals and find initial location more quickly.


To trace a smartphone requires a number of principal approaches of calculating smartphone location. GPS (Global Positioning System/Satellites), Triangulation, and CellID. Every one of these technologies convert cell phones into mobile monitoring devices. These kinds of systems can be seen as Network Based, Handset Based or possibly a Hybrid approach. GPS position is Handset based simply because it needs software installed on the cell phone together with GPS hardware. Triangulation and CellID are Network Based since they use the equipment and information from the cellular provider. Hybrid techniques bring together techniques to make best use of available data and to help make perform faster.



Fundamentals about GPS Tracking Software

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