Introducing Precise+: Bringing Supercorrelation® to High-Precision GNSS

At FocalPoint, we’ve spent years pushing the boundaries of GNSS performance through Supercorrelation®, our technology that delivers cleaner, more reliable measurements in challenging signal environments. With S-GNSS® Auto, we’ve already demonstrated how improving code and frequency measurements can unlock more robust positioning in real-world conditions.

Now, we’re taking the next step.

Precise+ is our next-generation technology that brings reliable, high-precision positioning to carrier phase measurements, keeping RTK and PPP working even in challenging environments.

Why carrier phase matters

Carrier phase measurements enable centimetre-level positioning accuracy, far beyond what traditional code-based positioning can achieve. This is because the carrier signal operates at a much higher frequency, allowing distance to be measured with millimetre-level precision.

However, this precision comes with a trade-off: carrier phase tracking is fragile. It relies on maintaining continuous signal lock. When that lock is interrupted, due to urban environments, signal blockage, or multipath reflections, the receiver experiences a cycle slip, effectively losing track of the signal’s phase and forcing the system to reinitialize.

These disruptions are one of the biggest barriers to consistent high-precision positioning in real-world environments.

Ground breaking carrier phase resilience

Multipath, where multiple signals arrive via both direct and reflected paths, is a key source of degradation in GNSS performance, especially in urban environments. It can introduce errors or loss of lock if not properly handled.

Precise+ addresses this challenge, by extending the principles of Supercorrelation into the carrier phase domain. By improving how signals are tracked and interpreted, particularly in the presence of multipath and interference, Precise+ enhances the quality and stability of carrier phase measurements. Our approach incorporates advanced signal processing and synthetic antenna techniques to better isolate line-of-sight signals, reducing the impact of multipath interference.

Precise+ reduces cycle slips, unlocking robust performance

Precise+ focuses on ADR (Accumulated Delta Range) / carrier phase measurements, directly targeting the root causes of cycle slips.

By reducing the frequency and severity of these events, Precise+ helps maintain phase continuity, one of the most critical requirements for high-precision GNSS. This leads to more reliable ambiguity resolution, faster fixes, and ultimately better positioning performance.

The result is a fundamentally more robust carrier phase solution, with several key benefits:

• Tighter carrier phase tracking – more stable and reliable carrier phase measurement
• Increased time in high-precision mode – maintaining RTK/PPP fixes for longer with reduced fallback to code-based positioning
• Faster convergence and reconvergence – quicker recovery after signal degradation

In practical terms, this means systems can maintain high-precision positioning more consistently—even in environments where traditional approaches struggle.

Looking ahead

Precise+ represents a significant step in our roadmap: bringing the benefits of Supercorrelation into the world of high-precision GNSS.

Enabling consistent centimetre-level accuracy in real-world environments is becoming critical across several industries, including automotive and robotics. Precise+ is designed to meet that need—unlocking the full potential of carrier phase positioning, wherever it’s deployed. As an example, for automated vehicles, Precise+ means maintaining lane-level accuracy through urban streets, reducing dropouts and enabling safer, more reliable navigation.

FocalPoint is working with leading chipset manufacturers to bring Precise+ to market. Get in touch to learn how Precise+ can enhance your positioning performance.