• 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. The use of ict has changed the way in which people work. Explain the ...

    Computers are used to assist in the training of doctors and nurses by being used to describe and show the different symptoms of diseases so that doctors can practice diagnosing the different illnesses . They also use this idea to help with training by showing on simulation software the different

  2. Computer Systems Assignment 2

    I would suggest making the screen appear larger by increasing the resolution and telling the secretary where the toolbar is located (at the top of the screen), what features it contains, and what are most useful. The styles, as seen above, are useful for setting titles, subheadings and references.

  1. gcse ict unit 2a

    * Operations - Carrying out the main business of ASDA * Production - This involves designing and producing products from raw materials or semi finished products. ICT Peripheral Used in Asda's Sales and Marketing Department: * Electronic Point of Sale * CCTV * Machine for Self Serving * Digital Camera

  2. a level ict project

    In order to meet this objective the functions must be clearly defined, for example, if the user wants to view all customers, the button must be clearly visible and comprehensible. This allows even the most primitive computer users to perform tasks successfully.

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