Are you struggling with ionospheric disturbances affecting your RTK surveying accuracy? You’re not alone. Many surveyors are facing similar issues, leading to questions about which RTK method is best during such conditions. Let’s dive into the differences between the “1+1” and CORS methods to help you make an informed decision.
During periods of frequent ionospheric disturbances, the “1+1” method is generally more stable and reliable for RTK surveying operations. This method involves using a base station and a rover, providing a direct and stable connection that minimizes the impact of ionospheric interference.
Stability and precision are crucial in challenging environments. However, understanding the nuances of each method is essential for optimizing your surveying tasks.
What are the “1+1” and CORS Methods?
Using CORS Mode
In the CORS mode, the rover receives differential signals from a Continuously Operating Reference Station (CORS). This setup eliminates the need for setting up a physical base station, thus reducing cost and setup time.
Advantages:
- No need for a physical base station.
- Lower operational costs.
- Simplified setup process.
- Broad working range without base station limitations.
Disadvantages:
- Dependence on network communication.
- Limited use in remote areas without network coverage.
- Less stability during ionospheric disturbances.
1+1 Mode
The 1+1 mode involves a base station and a rover working together. The base station sends correction signals directly to the rover, ensuring stable and precise measurements.
Advantages:
- Stable signal and high accuracy.
- Less susceptible to external interferences.
Disadvantages:
- Higher equipment costs.
- More complex setup.
FAQs About RTK Methods
Which RTK method is better for urban environments?
CORS mode is often preferred due to its cost-effectiveness and ease of use.
Can the 1+1 mode be used in remote areas?
Yes, it provides stable results even in areas with poor network coverage.
How do ionospheric disturbances impact RTK surveying?
They cause signal fluctuations, which can lead to inaccuracies in positioning.
Conclusion
When dealing with frequent ionospheric disturbances, the “1+1” method is generally more reliable due to its stability and high precision. While CORS mode is convenient and cost-effective, its reliance on network communication can be a limitation in such conditions.
At RTK MAX, we specialize in providing advanced RTK systems tailored to your needs. Join us to ensure your surveying operations are accurate and efficient, even in challenging environments.
