CAST releases GPS wavefront generator

November 1, 2017  - By

CRPA and Attitude Determination Receiver Testing

The CAST-5000 by CAST Navigation produces a single coherent wavefront of GPS RF signals to provide repeatable testing in the laboratory environment or anechoic chamber. The system generates up to seven independent, coherent simulations that reference a single point. With an intercard carrier-phase error of less than one centimeter, the CAST-5000 is extremely accurate, the company said.

The system generates a wavefront of GPS when its GPS RF generator cards are operated in a ganged configuration. Each generator card provides a set of GPS satellites coherent with the overall configuration. Several RF generator cards may be utilized together, ensuring phase coherence among the bank of signal generator cards.

The CAST-5000 is the only Controlled Reception Pattern Antenna (CRPA) tester that allows a full end-to-end test of the antenna system. The CRPA antenna, antenna electronics and the GPS receiver can be tested as a unit with or without radiating signals.

CAST-5000 Features

  • Generates single coherent wavefront of GPS
  • 6 degrees of freedom (DOF) motion generation capability
  • Complete SV constellation editing
  • Post-mission processing via ICD-GPS-150/153
  • Differential/relative navigation
  • Antenna pattern modeling
  • Waypoint navigation
  • RAIM events
  • Multipath modeling
  • Spoofer simulation
  • Satellite clock errors
  • External trajectory input
  • External ephemeris and almanac
  • Several iono and tropo models
  • Modifiable navigation messag
  • Modeled selective availability
  • Time-tagged satellite events
  • Selectable host vehicle parameters

About the Author: Tracy Cozzens

Senior Editor Tracy Cozzens joined GPS World magazine in 2006. She also is editor of GPS World’s newsletters and the sister website Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.