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Guidelines for Real-Time Kinematic (RTK) Surveying

Over the past decade Real Time Kinematic, RTK surveying  with Global Navigation Satellite Systems (GNSS) has become common practice in geomatics.RTK Surveying with Global Navigation Satellite Systems (GNSS)

RTK surveying is a relative positioning technique which measures positions using two GNSS antennas in real time. One is setup on a static point with fixed coordinates and is known as the base station. It uses a high frequency radio to transmit its raw observations to the second unit (known as the rover) and then the rover uses both observations to compute a position relative to the base location in real-time. RTK surveying requires reliable communication between base and rover units and works best with short baselines as the precision of RTK measurements decreases as the baseline length increases.

Guidelines for Real-Time Kinematic – RTK Surveying

Real Time Networks have been developed as a method of extending range limitations between base-to-rover. RTNs make use of a several base stations together to collect GNSS observations that can be used with a rover to compute a position relative to the network solution in real-time. During the last few years more public and private RTNs have been rapidly increasing, providing larger coverage zones (mostly in higher populated regions). However due to the size of Canada and the availability and extent of RTN zones, RTK surveying remains to be the viable option in GPS surveying.RTK Surveying in Canada

Both RTK & RTN GNSS surveying can allow people to achieve relative positioning with centimetre (cm) precision, however there are several important factors that need to be considered and thus a need for a good guide of best practices (equipment calibration, errors, multipath, geometry, etc.). Therefore Natural Resources Canada (NRCan) put together a group of exports from various departments that came together to publish a new set of guidelines for RTK / RTN GNSS surveying in Canada in order to better assist the surveying community and the growing geomatics industry in Canada. Their goal was to provide the industry with a set of concise and easy to follow best practice guidelines that when followed can help users achieve centimetre level RTK/RTN survey accuracy.

You can download the 29 page PDF document with this link

http://www.nrcan.gc.ca/sites/www.nrcan.gc.ca/files/earthsciences/pdf/Canada-RTK-UserGuide-v1_1-EN.pdf

Public Real Time Networks in Canada for RTK Surveying

[Article original published: Aug. 2013]



Post Update:
Since publishing this info last year, I have come across some other similar documents about RTK GNSS surveying from various other sources and have included the links to them below.


5 most viewed Total Stations

Total Stations - Viva TS15 - Leica5 most viewed Total Stations

Total Stations - NPL-322 – by Nikon Geo-matching .com is a great website that features a variety of the latest equipment used in the geomatics sector, including total stations. This online service is a great way that allows users to compare various geomatics related product and read other reviews from actual people in the Geospatial sector in order to help them make a well balanced purchase decision.

Total Stations - S8 - by TrimbleGeo-matching is a product comparison style website for geomatics related devices and provides users with good overviews of Total Stations, UAVs, GNSS Receivers, and other hardware used in the industry. The total-station category now features, the GTS340Rs, RTS 330, NPL-332, FOCUS 35, KTS-470C, R10, and Pentax W-1500N.

Geo-matching also compares products such as digital cameras, LiDAR equipment, laser scanners, photogrammetric workstations and image processing software. If you have used any of these geomatics related products then you should consider visiting the site and sharing your experiences with total stations, so others in the geomatics community can benefit from your input.

Total Stations - Total Station BasicsThe top total stations viewed in February from the geomatics community on Geo-matching.com were:

  1. S8 by Trimble
  2. DS Series by Topcon
  3. NPL-322 by Nikon
  4. Pentax W800 Series by TI Asahi
  5. KTS-580 R Series by Kolida

It is interesting to note that Trimble views increased since the last time we posted the Geo-matching rankings, climbing to the top of the list and Leica dropped out of the top 5 all together. Personally we have always used Leica total stations

Keep in mind this top 5 list is based on website views, therefore you should really go to Geo-matching.com yourself, read the available material and user reviews; then decide for yourself which total station is best for you.


Geomares PublishingGeo-matching.com is part of Geomares Publishing, a publisher of books, magazines, websites, in topics related to Geomatics & Hydrography.

Geomares Publishing, Nieuwedijk 43, 8531 HK Lemmer, The Netherlands, Phone +31 (0)514 561854, email: info@geomares.nl

Top 5 Total Stations

5 most viewed Total Stations

Top 5 Total Stations (based on user views)

Total Stations - NPL-322 – by NikonGeo-matching .com is a great website that features a variety of the latest equipment used in the geomatics sector, including  theodolite and total stations. This online service is a great way that allows users to compare various geomatics related product and read other reviews from actual people in the Geospatial sector in order to help them make a well balanced purchase decision.

Total Stations - S8 - by TrimbleGeo-matching is a product comparison style website for geomatics related devices and provides users with good overviews of Total Stations, UAVs, GNSS Receivers, and other hardware used in the industry. The total-station category offers a variety of hardware including: devices by Topcon, Foif, Nikon, Kolida, LeicaGeomax, TI Asahi and Spectra Precision.

Besides total stations & theodolites, the site also includes UAVs, GNSS receivers, laser scanners, Lidar, image processing software and digital photogrammetric hardware. If you have used any of these geomatics related products then you should consider visiting the site and sharing your experiences, so others in the geomatics community can benefit from your input.

Total Stations - Viva TS15 - Leica

The top total stations for 2014 based on views from the geomatics community on Geo-matching.com were:

  1. Viva TS15  – by Leica
  2. NPL-322 – by Nikon
  3. S8  – by Trimble
  4. Pentax W800 Series – by TI Asahi
  5. KTS-580 R Series – by Kolida

 

However we think that you should keep in mind this top 5 list is based on website views and you should really go to Geo-matching.com yourself, read the available material and user reviews; then decide for yourself which total station is best for you.


Geomares Publishing - top 5 Total Stations Geo-matching.com is part of Geomares Publishing, a publisher of books, magazines, websites, in topics related to Geomatics & Hydrography.

Geomares Publishing, Nieuwedijk 43, 8531 HK Lemmer, The Netherlands, Phone +31 (0)514 561854, email: info@geomares.nl