LOW-FREQUENCY RADIO INTEGRATED WITH DEAD-RECKONING FOR AUTOMATIC VEHICLE LOCATION. NAV 85 - LAND NAVIGATION AND LOCATION FOR MOBILE APPLICATIONS - PAPERS PRESENTED AT THE 1985 CONFERENCE OF THE ROYAL INSTITUTE OF NAVIGATION, YORK, 9-11 SEPTEMBER 1985

The use of existing low frequency radio systems such as decca navigator and loran c for vehicle location in urban or rural areas is discussed. Transmitters provide a grid reference signal which is picked up and processed to show a vehicle's position. The quality of the transmitted signal is however affected by woodlands, overhead lines and buildings giving rise to errors in calculated positions as shown in a test route diagram. A dead reckoning system, using a compass and an odometer, is therefore introduced working in parallel with the radio system. The radio data from the transmitter system is continuously compared with the corrected positional co-ordinates given by the dead reckoning system and a final position calculated taking into account the quality of the radio signal. Diagrams are given and it is concluded that this hybrid system shows much promise. (TRRL)

• Corporate Authors:

  Royal Institute of Navigation

  1 Kensington Gore
  London,   England 
• Authors:
  • Last, J D
• Publication Date: 1985

Media Info

• Features: References;
• Pagination: 2 p.

Subject/Index Terms

• TRT Terms: Automatic vehicle location; Conferences; Design
• ITRD Terms: 3882: Automatic; 8525: Conference; 9011: Design (overall design); 9061: Location; 1255: Vehicle
• Subject Areas: Design; Highways; Planning and Forecasting;

Filing Info

• Accession Number: 00491627
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Mar 31 1990 12:00AM