• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

AO2 - Describe an innovation in ICT - Satellite Navigation

Extracts from this document...

Introduction

´╗┐Purpose The purpose of satellite navigation is to guide someone to a certain place for example a restaurant, petrol station, a certain address or a postcode. Satellite Navigation can be used in cars, on motorcycles, bicycles and when walking and can be used to navigate to an unfamiliar place. Satellite navigation can have many purposes such as business purposes and for personal use. Satellite navigation can be used for businesses like postal companies and lorry drivers who are not sure how to get to a place or are unfamiliar with a certain place. Satellite navigation can be used for personal use if people using it are unsure how to get to somewhere or to find a good route to go somewhere. ...read more.

Middle

Each satellite is constantly beaming out a radio-wave signal towards Earth. The receiver device ?looks? for these signals and, if it can pick up signals from three or four different satellites, it can figure out your precise location. This works by satellites staying in known positions and the signals travel at the speed of light. Each signal includes information about the satellite it came from and a time-stamp that says when it left the satellite. Since the signals are radio waves, they must travel at the speed of light. By noting when each signal arrives, the receiver can figure out how long it took to travel and how far it is from the sending satellite. ...read more.

Conclusion

Limitations There can be some limitations of satellite navigation for instance people may need to carry a back up map and directions in case a satellite navigation system fails for some reason. For example, if someone is driving down a city street, the buildings may block the satellite signal preventing them from receiving position updates. If someone is hiking in the wilderness, their handheld satellite navigation receiver?s battery may die leaving them with no way to navigate. Satellite navigation signals are not always completely accurate. Obstacles like buildings and trees can deflect the signal, causing someone?s position on the satellite navigation system screen to be off by as much as 100 feet. Atmospheric conditions may also affect satellite navigation accuracy. Unit 8: AO2 ? Describe An Innovation In ICT ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE ICT Systems and Application section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE ICT Systems and Application essays

  1. gcse ict unit 2a

    The Impact of Using the Software: Microsoft Word: The finance department of ASDA uses this software to produce the yearly financial report which takes away the profit the company has made from the expenditure to create the net profit of the year.

  2. Computer Systems Assignment 2

    To be able to edit photos, images and graphics. To have some sort of layering system. To be able to create believable images or graphics or edited photos. To be able to have an array of tools. To be able to create images and graphics for advertising, for artwork, for things like e-fits and aging programmes.

  1. a level ict project

    For example, presence checks to ensure any missing data alerts the user, this is a validation check. As for verification the user could be prompted to enter data twice to highlight mistakes, which could be used when entering passwords to access the system.

  2. Statistics Study Guide

    Lower class limits- are the smallest numbers that can belong to the different classes. Upper class limits- are the largest numbers that can belong to the different classes. Class boundaries- are the numbers used to separate classes, but without the gaps created by class limits.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work