TAG: P-code

FIGURE 1. Illustration of conventional PPP measurement and error modeling in state-space Hatch filter, resulting in reduced position error in time. FIGURE 2. Conventional geodetic GPS PPP positioning performance characteristics of initial convergence period and steady state for station ALGO, Algonquin Park, Canada, on Jan. 2, 2017. (Image: Sunil Bisnath, John Aggrey, Garrett Seepersad and Maninder Gill)

Innovation: Examining precise point positioning now and in the future

March 19, 2018

Where Are We Now, and Where Are We Going?

In this month’s column, we travel along the road of PPP development, examine its current status, and look at where it might go in the near future.


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Image: GPS World

To Solve LightSquared Issue, Javad Ashjaee Calls for End to P-Code Encryption

July 15, 2011

To solve the LightSquared versus GPS controversy, Javad Ashjaee, president and CEO of JAVAD GNSS, has appealed directly to President Obama to discontinue the encryption of P-code, the restricted military GPS signal. His comments came in the context of the LightSquared/GPS interference imbroglio, as part of his solution to the conflict over spectrum. “This policy is not helping national security. It is hurting both precision users and the broadband project. We need more broadband, for global, fast, and inexpensive real-time kinematic (RTK) GPS.”


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This article is tagged with , , and posted in Latest News, Mobile