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Waypoint GrafNav Lite


Waypoint Products Group

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GrafNav Lite is a scaled-down version of Waypoint Consulting's popular GrafNav/GrafNet™ software package that post-processes raw GPS data from a number of GPS receiver formats. Using data collected at base and rover stations, GrafNav Lite processes single frequency carrier phase, as well as code-only (DGPS) data. This gives the user access to accuracies ranging from 10 cm to 5 metres depending on the processing mode selected and the GPS receiver used. GrafNav Lite is ideal for users requiring sub-metre accuracies, and its easy-to-use interface means new users will be processing data in minutes.


GrafNav Lite Interface

GrafNav Lite supports the following GPS receivers:

  • NovAtel (OEMV™, OEM4, OEM3, OEM2)
  • Allen Osborne (TurboBinary)
  • CMC /NovAtel (Superstar II, AllStar)
  • Conexant (Juniper)
  • CSI (DGPS MAX)
  • Javad (All Models)
  • Leica (MX series, SR series, System 500, System 1200, MC 1000)
  • Magellan (CAR, MOB)
  • NAVCOM (OEM GPS)
  • NavSymm/Parthus (XR5, XR6, XR7)
  • NavSys (AGR)
  • Rockwell (PLRG series, NAVCOR)
  • Septentrio (SBF)
  • SIRF (Star II)
  • Thales (Real Time, B-file, DSNP)
  • Trimble (4000 series (DAT), 4000 series (RT), 5700, CMR, TSIP, Force5 (TIPY), SSx)
  • U-Blox (Antaris)
  • RINEX (2.0, 2.1)
  • UKOOA

Features included with GrafNav Lite:

  • Seamless static and kinematic processing
  • Kalman Filter supporting C/A code, carrier phase and L1 Doppler data
  • Float static solution
  • Forward, reverse and combined solutions
  • Easy-to-use graphical interface supports plotting of over 25 statistical parameters
  • Data can be exported in a number of projections, including: US State Plane, UTM, Geographic, Lambert, Transverse Mercator, local, and ECEF.
  • Fast processing!
  • Up to 1 Hz data rates
  • Accurate velocity determination
  • Achievable accuracies of 5 cm in static, 20 cm in kinematic using the L1 carrier phase, and 1-5 metres using C/A code-only processing

Features included with GrafNav/GrafNet and not GrafNav Lite:

  • Multi-base processing - supports up to eight base stations
  • GrafNet - static network processing program that includes a network adjustment and can be used for batch static processing
  • Kinematic Ambiguity Resolution (KAR) - allows the user to achieve centimetre results in kinematic mode
  • Dual frequency processing - improves KAR reliabilities and can increase long baseline accuracies with ionospheric processing. Also allows the P-code to be included in Kalman Filter.
  • Fixed static solution - allows the user to obtain centimetre or even millimetre accuracies in static mode.
  • Data rates greater than 1 Hz
  • Occupation mode processing - improves accuracies under tree cover
  • Interpolation of event marks - can be used to load camera pulse information from a variety of GPS receivers
  • Precise ephemeris - improves accuracies on long baselines
  • Remote initialization - allows the user to enter the coordinates of a known point to initialize the carrier phase ambiguities.
  • Specialized input and output formats such as Leica IDEX