Tech Blog

What is SLR and VLBI?

Satellite Laser Ranging (SLR) and Very-Long-Baseline Interferometry (VLBI) are modern geodetic techniques used for accurate measurement and positioning.

Jul 5, 1701

What is ITRF and ITRS?

Why are there people saying that "I am using WGS84 (ITRF96)"锛焅r What does the ITRF do? What is the relationship between ITRF and WGS84 coordinate system? So how to determine the epoch and frame of conventional RTK and TAP services?

Jan 6, 1698

How to mitigate the ionospheric influence on GNSS positioning?

To mitigate ionospheric influence on GNSS positioning, avoid unfavorable conditions, choose suitable observation times, and utilize real-time ionospheric monitoring.

Jan 6, 1694

What is the PPP?

PPP means Precise Point Positioning. It refers to the technology in which the server makes use of global or regional reference stations to make real-time estimation of satellite orbit errors, clock errors, ionospheric delay, etc., and directly broadcast

Feb 6, 1682

How does Tersus handle long-range single baseline RTK positioning?

Global Navigation Satellite System (GNSS) has been known as one of the important tools for survey mapping, such as the most commonly used real-time kinematic (RTK) GNSS positioning method. As we all know, the RTK positioning method requires the mobile sta

Jul 10, 1680

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May 15, 1670

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May 15, 1670

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May 15, 1670

Where are the actual measurement coordinates?

When various GNSS receivers receive high-precision data from the Global Navigation Satellite System (GNSS) for centimeter-to-millimeter-level positioning, which point coordinates are the positioning data we actually obtain? The point on the ground that th

Sep 6, 1668