Skip to main content

The Global Positioning System A Shared National Asset (1995) / Chapter Skim
Currently Skimming:


Pages 166-166

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 166...
... One very effective technique, known as w~de-lan~ng, relies on carrier phase measurements from both the it, and L2 frequencies.36 Multi-channel GPS receivers have recently been developed that take advantage of L~ and L2 wide-laning to resolve carrier phase cycle ambiguity by squaring the 12 signal or cross correlating L1 and ~ within a single receiver. The term "codeless" has been associated with these receivers because, as with earlier carrier phase techniques using two receivers, knowledge of the Y-code itself is not required.37 Pseudolites A "pseudolite" or pseudo-satellite is a land-based GPS transmitter capable of generating a signal similar to that of an actual GPS satellite.
Read the entire page →

Key Terms

  • gps receivers
  • pps receiver
  • ambiguity resolution
  • carrier phase
  • gps signal

  • satellite signals
  • gps receiver
  • additional frequency
  • gps signals
  • phase data

  • gps satellite
  • improve accuracy


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.