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References and information sources
Books
- Sonnenberg, G.J. (1970). Radar and Electronic Navigation, 4th Edition. Newnes-Butterworths. ISBN 0408000031.
Hyperbolic receivers -- Decca
- Last, J.D., Linsdall, D.K. (1984). Automatic microprocessor-based receivers for the Decca Navigator system. Radio and Electronic Engineer 54(7), p. 281-289. DOI: 10.1049/ree.1984.0066.
IET Digital Library: https://digital-library.theiet.org/content/journals/10.1049/ree.1984.0066 - Fisher, A.J. (1993). Microprocessor-based Decca Navigator Hyperbolic Radionavigation Receivers. Report YCS 194, Dept. of Computer Science, University of York.
Online: https://www.semanticscholar.org/paper/Microprocessor-based-Decca-Navigator-Hyperbolic-Fisher/98bcf08813dadbab49904db1a7348cb76509cce6- Based on Last's design. Measures position from the “Orange” Decca Multipulse channel using phase measurement.
- Includes location algorithm which may also be useful for Datatrak.
- Fisher, A.J. (1998). A Test-Bed for Low-Frequency Radionavigation.
Online: https://www.semanticscholar.org/paper/A-Test-Bed-for-Low-Frequency-Radionavigation-Fisher/da242762b6217e421563be8e97267a48bd2e490e - Fisher, A.J. (1993). New algorithms for hyperbolic radionavigation. Radar and Signal Processing, IEE Proceedings F. 140(2) p. 145-152. DOI: 10.1049/ip-f-2.1993.0021.
Online: https://www-users.cs.york.ac.uk/~fisher/pubs/navig.ps.Z
Datatrak-specific
System (general)
- Banks, K. M. (1989). DATATRAK Automatic Vehicle Location and Position Reporting System. In: Conference Record of papers presented at the First Vehicle Navigation and Information Systems Conference (VNIS ’89), 0. IEEE.
Available from: <http://dx.doi.org/10.1109/VNIS.1989.98765>.- Includes a lot of information about the 16-slot and 24-slot navigation slot structure, and the UHF back-channel.
- Also includes information on what can be assumed to be the Mk1 Locator (68008 processor, -110dBm RF sensitivity)
- Hofmann-Wellenhof, B., Wieser, M. and Legat, K. (2003). Navigation: Principles of Positioning and Guidance. Wien: Springer, pp.156-158.
- Good summary of Datatrak. Explains the network structure, the 150km blanking distance, and the three-step (super-coarse, coarse, fine) navigation process.
- Scorer, T., & Last, D. (1995). The Current Status of the Securicor Datatrak System. Journal of Navigation, 48(2), 204-214. doi:10.1017/S0373463300012662
- Referenced by HoffmanWellenhoff2003
Relevant patents
- Anderson, P.M.: Dual purpose, low profile antenna. European patent EP0608992A1.
Online: https://patents.google.com/patent/EP0608992A1/- Datatrak LF receive / UHF transmit antenna – microstrip circular patch type.
- Includes circuit diagram with component values.
- Hall, P.S.: Improvements in or relating to microstrip antennas. European patent EP0174068A1.
Online: https://patents.google.com/patent/EP0174068A1/- More information on the design parameters of circular microstrip patch antennas.
- Dusseux, T.; Gomez-Henry, M.: Diplexing Radiating Element. US patent US5055852.
Online: https://patents.google.com/patent/US5055852/ - Crompton, E.W.: Mobile transmitter/receiver. European patent EP0292182B1.
Online: https://patents.google.com/patent/EP0292182B1/