Piercing the Veil: Tests of a Flexible Pseudolite-Based Navigation System

In a feature on military and government navigation, a pseudolite (PL) navigation system is described. It is a flexible, software-based system incorporating a pulse-blanking scheme in which the pulsing feature can be switched on or off to help mitigate the near-far problem that can compromise the usefulness of PLs. The receiver is capable of using Global Positioning System (GPS) and PL signals simultaneously to enhance accuracy. The article describes challenges in overcoming near-far effects, implementation, the receiver’s design and fabrication, PL operating modes and test results. A block diagram of the PL receiver using the software framework is shown. The receiver can be extended to 12 or more channels and accommodate a variety of combinations of PL and GPS. Operating modes comprise GPS signal-like waveforms and C/A code and P-code capabilities. Four PL transmitters are typically needed to obtain unambiguous positions and time estimation.

  • Availability:
  • Authors:
    • Jovancevic, Aleksandar
    • Bhatia, Nikhil
    • Noronha, Joseph
    • Sirpatil, Brijesh
    • Kirchner, Michael
    • Saxena, Deepak
  • Publication Date: 2007-3


  • English

Media Info

  • Media Type: Print
  • Features: Figures; Illustrations; Photos; Tables;
  • Pagination: pp 30-37
  • Serial:
    • GPS World
    • Volume: 18
    • Issue Number: 3
    • Publisher: Advanstar Communications, Incorporated
    • ISSN: 1048-5104

Subject/Index Terms

Filing Info

  • Accession Number: 01044772
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Mar 20 2007 12:05PM