J-Star Precise Point Positioning (PPP) Subscription Service

[John Rosco]

J-Star provides satellite-based delivery, which is ideal for use in remote areas, when outside wireless link coverage, or when a base station setup and operation is not feasible.

Key Features
• 10 cm in 1000 s, 5 cm in 2000 s
• Worldwide Land Operation
• Real-Time cm-level Positioning
• 80 GNSS Receiver Network
• 6 Geostationary Satellites
• Two Network Control Centers
• Delivery via L-Band & NTRIP
• GPS, Galileo, GLONASS, BeiDou
• Round-the-clock Service

For more information contact sales@javad.com or your local dealer for J-Star capable receivers or service activation.

 

[jack newsome]

5cm accuracy in 2000 seconds ? with no base? no internet? Sounds pretty good. How long would convergence be for 25cm accuracy?

 

[John Rosco]

JSTAR PPP solution to converge to sub-decimeter resolution is about 11 minutes of continuous signal tracking.

 

[JAVAD Support]

5cm accuracy in 2000 seconds ? with no base? no internet? Sounds pretty good. How long would convergence be for 25cm accuracy?

JSTAR PPP-Float ~ 4 minutes
JSTAR PPP-Fixed ~11 minutes or less (converged)

Note: JSTAR-PPP corrected GNSS PVT solutions, correspond to the ITRF2014 'global' Coordinate Reference System (CRS) frame – see image



The spread of the observations, with JAVAD GNSS 'rover' receivers using JSTAR-PPP corrections, provide a PVT (CRS ITRF2014) 'converged solution' at the sub-decimeter repeatability.