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Navigation Essay Topics & Paper Examples

Global Positioning System

The Global Positioning System involves the use of transmission of at least 4 radio wave signals from a “constellation” of 24 earth-orbiting satellites at one time. A Global Positioning System (GPS) unit consists of a space segment, a control segment, and a user segment. The space segment is a constellation of two-dozen satellites orbiting the earth twice every 24 hours, at approximately 10,900 nautical miles above the earth’s surface. The control segment is a series of monitoring stations located at different sites on earth. These stations update and correct errors in the navigational message of the satellites. The user segment is a receiver that receives radio waves from the satellites in orbit, which keeps track of how far away each…

Personal Navigation Devices

1. Why have Personal Navigation Devices become popular. What technologies are required to facilitate the success of PND? Personal navigation devices can become the next must-have gadgets. They add more comfort in the busy life in the sense that they give you an ability to concentrate on one thing less. PND like, say, GPS are starting to win over customers, from weekend hikers or bikers to people who are just tired of their lousy sense of direction. Some consumer GPS navigation devices feature interactive street maps that may also show route information, and step-by-step routing directions. For these reasons PND’s are very helpful and useful. They have, though, some limitations. For example, the consumers are limited to two-dimensional data and…