GNSS Blogs
GNSS Integrity and RAIM: A Practical Introduction
Key Takeaways Accuracy tells you how close the solution may be; integrity tells you whether it can be trusted. RAIM uses redundant observations to detect or exclude faults, but it...
GNSS Integrity and RAIM: A Practical Introduction
Key Takeaways Accuracy tells you how close the solution may be; integrity tells you whether it can be trusted. RAIM uses redundant observations to detect or exclude faults, but it...
PPP-RTK Explained: How It Achieves Global Centimeter-Level Positioning
PPP-RTK is a high-precision GNSS positioning technology designed to provide fast centimeter-level positioning over wide areas without relying on a local RTK base station. The phrase “global centimeter-level positioning” is...
PPP-RTK Explained: How It Achieves Global Centimeter-Level Positioning
PPP-RTK is a high-precision GNSS positioning technology designed to provide fast centimeter-level positioning over wide areas without relying on a local RTK base station. The phrase “global centimeter-level positioning” is...
What Is PPP in GNSS? High-Precision Positioning Without a Base Station
In high-precision GNSS applications, RTK (Real-Time Kinematic) is one of the most familiar centimeter-level positioning technologies. By transmitting real-time corrections from a base station to a rover, RTK enables rapid...
What Is PPP in GNSS? High-Precision Positioning Without a Base Station
In high-precision GNSS applications, RTK (Real-Time Kinematic) is one of the most familiar centimeter-level positioning technologies. By transmitting real-time corrections from a base station to a rover, RTK enables rapid...
Can Single-Frequency RTK Still Be Used? Applications, Accuracy, and Limitations
RTK (Real-Time Kinematic) is widely used to achieve centimeter-level GNSS positioning in surveying, agriculture, robotics, UAV mapping, and machine control applications. Today, most high-performance RTK receivers support dual-frequency or multi-frequency...
Can Single-Frequency RTK Still Be Used? Applications, Accuracy, and Limitations
RTK (Real-Time Kinematic) is widely used to achieve centimeter-level GNSS positioning in surveying, agriculture, robotics, UAV mapping, and machine control applications. Today, most high-performance RTK receivers support dual-frequency or multi-frequency...
What Is GNSS Ambiguity Resolution? Understanding RTK Fix
Every RTK user has seen the positioning status change from Float to Fixed. But what exactly is being “fixed”? A common misunderstanding is that RTK ambiguity fixing directly fixes the...
What Is GNSS Ambiguity Resolution? Understanding RTK Fix
Every RTK user has seen the positioning status change from Float to Fixed. But what exactly is being “fixed”? A common misunderstanding is that RTK ambiguity fixing directly fixes the...
Beyond First-Order Correction: Understanding Higher-Order Ionospheric Effects in GNSS
The ionosphere is one of the largest natural error sources affecting GNSS positioning accuracy. For decades, researchers and engineers have focused primarily on correcting the first-order ionospheric delay, which represents...
Beyond First-Order Correction: Understanding Higher-Order Ionospheric Effects in GNSS
The ionosphere is one of the largest natural error sources affecting GNSS positioning accuracy. For decades, researchers and engineers have focused primarily on correcting the first-order ionospheric delay, which represents...