Necessity
We have many questions about how to use GNSS RTK equipment to improve field accuracy. The most common method for RTK to achieve high accuracy is differential correction. In the measurement work, under normal circumstances, the data obtained by our RTK is obtained through automatic real-time correction. Of course, it is also possible to perform correction (ie post-processing) after collecting the measurements. Although GNSS satellites can calculate position with high accuracy, many errors are introduced between the signal leaving the satellite and hitting the receiver on the ground. Generally, corrections are effective because most sources of error (such as the atmosphere) are similar in a wide area. Differential correction can be applied to GNSS RTK receiver-rover measurements to eliminate most errors.
Principle
The principle is to install the base station on a known point and continuously collect GNSS data. At any given time, GNSS may tell the base station that its location is different from the actual location known to the base station. The result of the differential correction directly depends on the location of the base station used and the reference frame. Before starting a data collection project, it is important to understand the reference frame of the calibration source. This aspect applies to all forms of GNSS correction, including post-processing, RTK, VRS, etc. In most cases, this information should be available from the provider of the correction service.
Maintenance
The infrastructure of the calibration service base station is usually maintained by a surveyor or other geodetic survey organization. Today, most GPS receivers support differential correction through satellite-based augmentation systems (SBAS), such as the Wide Area Augmentation System (WAAS) in the United States. In this way, the reference position and coordinate system information is usually kept up to date with the latest benchmarks and implementations. This is usually in contrast to GIS recording systems, which use the same coordinate system for a longer period of time.
Learn more about RTK differential correction: https://www.satlab.com.se/product_category/gnss/
In the last article we talked about the solution to the RTK "Single" problem.
This time we will talk about if RTK has been in the "Float" or "DGPS" state during the measurement work, what should we do to solve this problem, obtain higher-precision RTK coordinate data, and help us better complete the measurement work .
"Float":If the instrument displays a “Float” point solution, it means that the instrument has received the signal, but it still cannot be fixed.
It may be that there is serious interference around the surveying area, such as magnetic fields, trees, etc., resulting in insufficient receiving satellites.
At this time we should find an open place to rebuild the station.
Check whether the base station and the rover are connected incorrectly, or try changing the radio channel.
Freefly Alta X drone is a compact, powerful, and customizable.
The Alta X Drone from Freefly Systems is a modular quadcopter platform that can meet nearly any drone requirements you have.
From RTK mapping to carrying heavy payloads, the Alta X can be combined with a variety of optional modules, payloads, and accessories.
Speak with us about your business and operation needs.
The global Receptor Tyrosine Kinase Market report offers a comprehensive assessment of the market for the forecast years.
These factors encompass the drivers, restraints, and opportunities.
This global industry offers an outlook on the strategic development of the market in terms of revenue profits over the forecast period 2021-2026.The key market players for the global Receptor Tyrosine Kinase market are listed below:Eurofins DiscoveryBio-TechneR SystemsAbbexaSigma Aldrich BiotechnologyGlow BiologicsOriGene TechnologiesOthersClick here to get a FREE Sample Copy of the Receptor Tyrosine Kinase Market Research Report @ https://www.decisiondatabases.com/contact/download-sample-23271The Global Receptor Tyrosine Kinase Market Report is equipped with market data from 2016 to 2026.
The report forecasts sales and revenue from 2021 to 2026.
The detailed sales channel is also covered in the study.COVID-19 Impact Analysis on Receptor Tyrosine Kinase MarketThe global pandemic COVID-19 has affected the Receptor Tyrosine Kinase market directly or indirectly.
The impact study on production, supply-demand, and sales provides a holistic approach to the future.Do You Have Any Query Or Report Customization?
