You are previewing Essentials of Positioning and Location Technology.
O'Reilly logo
Essentials of Positioning and Location Technology

Book Description

Mystified by locating and positioning technologies? Need to get the best from your location system? This guide is invaluable for understanding how the positions and movements of objects can be measured and used for real-world applications. From it, you'll learn how to optimise and manage system performance by working with parameters such as velocity, orientation, time, proximity and direction, and consider not only accuracy, but also reliability, integrity, response time and uncertainty. Packed with practical examples, this concise book gives you an overview of terrestrial radiolocation techniques, including comparative system architectures and real-world performance and limitations. It describes inertial navigation principles and techniques, including low-cost MEMS sensors for consumer products, and a range of applications, such as those benefiting from hybrid positioning techniques.

Table of Contents

  1. Coverpage
  2. Essentials of Positioning and Location Technology
  3. Title page
  4. Copyright page
  5. Contents
  6. 1 Introduction
    1. 1.1 A brief historical perspective
    2. 1.2 What is meant by location or positioning?
    3. 1.3 Describing a position
    4. 1.4 Location as a context for applications
    5. 1.5 Techniques for determining the position of an object
  7. 2 Coordinate systems
    1. 2.1 Latitude and longitude
    2. 2.2 Cartesian coordinate systems
    3. 2.3 Inertial coordinate frame
    4. 2.4 Describing direction and orientation
  8. 3 Satellite positioning (GNSS)
    1. 3.1 Introduction to satellite positioning
    2. 3.2 Brief description of how GPS works
    3. 3.3 High precision GPS systems
    4. 3.4 Assisted GPS
    5. 3.5 Brief descriptions of other GNSSs
  9. 4 Radiolocation technologies
    1. 4.1 Angle of arrival
    2. 4.2 Received signal strength (RSSI) to determine distance
    3. 4.3 Time-of-flight range measurement
    4. 4.4 Time of arrival
    5. 4.5 Time difference of arrival
    6. 4.6 Measuring signal arrival time
    7. 4.7 Positioning using cellular mobile networks
    8. 4.8 Ultrawideband (UWB)
    9. 4.9 Other radiolocation systems
  10. 5 Inertial navigation
    1. 5.1 Principle of inertial navigation
    2. 5.2 Sensors used for inertial navigation
    3. 5.3 Architecture of a strap-down inertial navigation system
    4. 5.4 Navigation equations
    5. 5.5 Brief review of the errors in the strap-down inertial system
    6. 5.6 Integration with other positioning technologies
    7. 5.7 Dead reckoning for vehicles
    8. 5.8 Human navigation
  11. 6 Other techniques and hybrid systems
    1. 6.1 RFID and RTLS
    2. 6.2 Digital compass
    3. 6.3 Optical and image tracking techniques
    4. 6.4 Map matching
    5. 6.5 Image recognition
    6. 6.6 Fingerprinting
    7. 6.7 Simultaneous localisation and mapping (SLAM)
  12. 7 Techniques and performance
    1. 7.1 Understanding accuracy and precision
    2. 7.2 Theoretical bounds for accuracy
    3. 7.3 Techniques for assessing quality of a position fix
    4. 7.4 Tracking the motion of the target
  13. 8 When things go wrong
    1. 8.1 Systems, probability and false positives
    2. 8.2 Multipath
    3. 8.3 Vulnerabilities and limitations of GNSS
    4. 8.4 Strategies for dealing with failure
  14. 9 Location-based services and applications
    1. 9.1 Essential principles underpinning services and applications
    2. 9.2 Location-based services
    3. 9.3 Professional applications
  15. 10 A brief look at the future
    1. 10.1 GNSS advances
    2. 10.2 Relative positioning systems
    3. 10.3 Visual and optical positioning systems
    4. 10.4 Privacy issues
    5. 10.5 The information of positioning
  16. References
  17. Index