EZSurv Post-Processing Software
EZSurv Post-Processing Software

EZSurv Post-Processing Software

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EZSurv License Types

EZSurv Licences

Tailored plans to suit your needs

There are two types of EZSurv License: EZSurv RINEX and EZSurv OPEN.

The differences are listed below.

EZSurv® RINEX license (one license/PC)

  • One license is needed for each PC on which EZSurv® runs (equivalent to hardware key).
  • Accept RINEX files only (files must be converted to RINEX).
  • Suitable for static post-processing.
  • Suitable for kinematic post-processing if the data is collected with either MicroSurvey Field
  • Genius, Carlson SurvCE or ReachView app.
  • Not appropriate for processing kinematic files recorded with OnPOZ data collection software (OnPOZ Collect and EZTagCE).

EZSurv® OPEN license (one license/PC)

  • One license is needed for each PC on which EZSurv® runs (equivalent to hardware key).
  • Accept binary data from unlimited number of receivers (no need to convert to RINEX).
  • Can be easily moved from one PC to another.

Three options are available for each licence. These are:

  • EZSurv Lite GNSS (sub-foot or sub-meter / float solution)
  • EZSurv L1 GNSS (centimetre with L1 receiver)
  • EZSurv L1/L2 GNSS

EZSurv license is compatible with the following data collection applications:

  • FieldGenius (from Micro Survey)
  • SurvCE (from Carlson Survey)
  • ReachView app (from Emlid)
  • EZTag CETM
  • OnPOZ Collect for Android and iOS

Full Description

EZSurv GNSS Post-Processing Software

Accurate GIS drone data

Improve the accuracy and reliability of your survey or GIS data with the EZSurv GNSS Post-processing software.

Designed to easily process raw GNSS data, this open platform provides an efficient and robust offline correction solution (PPK).

With access to 10,000 base stations, EZSurv automatically searches the internet for the closest GNSS base station to process your field data to improve accuracy.

EZSurv is intended for users who care about accurate results, without having to set numerous scientific parameters.

It can be used as part of the drone surveying workflow: Implemented to improve the georeferencing accuracy of your imagery before uploading to DJI Terra or alternative photogrammetry processing software.

Post-processing - Made Easier

Use EZSurv GNSS Post-Processing software to:

  • Play back your RTK survey for quality assurance control (Post-Processed Kinematic – PPK).
  • EZSurv is ideal if you have conducted a survey in an environment without internet or you have lost RTK corrections midflight. 
  • Make corrections to non-RTK GNSS field data (Post-Processed Kinematic – PPK).
  • Calculate high-accuracy baseline results (Static and Rapid Static).
  • Significantly improve GIS mapping data accuracy.
  • Calculate accurate UAV in-flight positions and precisely interpolate the position of each camera shot.

Powerful Post-processing Software

Sophisticated tools for robust survey data

Precise Drone Positioning

EZSurv post-processing software features a functionality to calculate drones’ in-flight positions through GNSS observations.

With these drone trajectory positions, this functionality precisely interpolates every image position (or any other events).

Using EZSurv and following an appropriate procedure in the field, the captured images can be georeferenced at +/- 1 cm of your reference datum.

Wide Base Station Compatibility

As in RTK mode, EZSurv can either use your own base station data or automatically connect to different base station providers.

This flexibility allows you to retrieve the closest base station data required to compute accurate rovers’ positions in post-mission.

EZSurv can also generate OminiStar/WADGPS/StarFire equivalent point positioning accuracy (Precise Point Positioning) by using post-mission precise orbit and clock data calculated by different international agencies.

EZSurv is available in different versions depending on your receiver type (single/dual frequency) and the accuracy level that you require.

Post-processed Accuracy

Post-processed Accuracy

Receiver Kinematic Static Semi-kinematic OTF (On The Fly)
Single Frequency Sub-metre1 Sub-centimetre3 Centimetre4 Centimetre5
Dual Frequency N/A Sub-centimetre6 N/A Centimetre7

 

1. Horizontal accuracy (HRMS). Requires 5-10 minutes of continuous tracking with at least 5 satellites and a PDOP (position dilution of precision) less than 6. Multipath and ionospheric effects can affect final accuracy. Base station separation may affect accuracy by about 5 ppm (depending on the quality of the base station data).

2. Horizontal accuracy (HRMS). Requires 15-20 minutes of continuous tracking with at least 5 satellites and a PDOP (position dilution of precision) less than 6. Multipath and ionospheric effects can affect final accuracy. Base station separation may affect accuracy by about 5ppm (depending on the quality of the base station data).

3. Horizontal baseline accuracy (HRMS). Requires 15-30 minutes of good data on a minimum of 4 satellites and a PDOP (position dilution of precision) less than 6. Multipath and ionospheric effects can severely affect final accuracy. This horizontal accuracy usually translates into 1cm +/- 2 ppm.

4. Requires L1 frequency receiver that outputs quality code, Doppler and carrier phase observations, along with reliable real-time cycle-slip detection. EZField data collection software is designed to facilitate the semi-kinematic process. It allows you to easily initialize on an initialization bar or a known point.

5. Horizontal accuracy (HRMS). Requires 30 minutes of continuous tracking with at least 5 satellites and a PDOP (position dilution of precision) less than 6. Base station must be within 10 km. Multipath and ionospheric effects can affect this accuracy. This horizontal accuracy usually translates into 2 cm +/- 2 ppm.

6. Static results require only 2-5 minutes of data to achieve centimeter accuracy. This horizontal accuracy usually translates into 1cm +/- 1 ppm (with good dual-frequency data).

7. OTF requires approximately 15 seconds of continuous tracking with at least 5 satellites and a PDOP (position dilution of precision) less than 6. Multipath and ionospheric effects can affect final accuracy. This horizontal accuracy usually translates into 2 cm +/- 2 ppm.



Seamless Data Post-processing

EZSurv allows seamless data post-processing between different GNSS receiver native formats.

This can be easily integrated into your current RTK process or your GIS mapping data integration loop.

EZSurv is an open solution that processes GPS, GLONASS, Galileo and BeiDou signals from different types of receiver brands.

It is compatible with industry standard data collection software.

Data Collection Software Compatibility

Data Collection Software Compatibility

  • BAP Precision GeoAssist files (BP2).
  • Carlson SurvCE files (CRD and RW5) along with proper raw observations and orbits files.
  • ESRI Arcpad - OnPOZ GNSS Driver for ArcPad project files (GPS), observation files (OBS) and orbit files (ORB).
  • Geo-Plus VisionTerrain files (MDB) along with proper raw observations and orbits files.
  • NavCom FieldGenius files (RAW) along with proper GNSS observations and orbits files.
  • MicroSurvey FieldGenius files (RAW) along with proper GNSS observations and orbits files.
  • MicroSurvey MapScenes Evidence Recorder files (RAW) along with proper GNSS observations and orbits files.
  • MicroSurvey Seismic Surveyor files (RAW) along with proper GNSS observations and orbits files.
  • OnPOZ EZTag CE project files (GPS), observation files (OBS) and orbit files (ORB).
  • OnPOZ EZField project files (GPS), observation files (OBS) and orbit files (ORB).
  • OnPOZ GNSS Control Panel project files (GPS), observation files (OBS) and orbit files (ORB).
  • Pentax FieldGenius files (RAW) along with proper GNSS observations and orbits files.


Roving L1 Receiver For High Accuracy

Generate high-accuracy post-processing (PPK) results with a single key stroke, at a fraction of the cost of a dual GNSS frequency system.

EZSurv is the most reliable post-processing software currently on the market to deliver centimetre accuracy positions using roving single frequency GNSS receivers (OTF L1).

Rigorous Processing Engine

EZSurv uses the latest GNSS processing techniques to get the most out of your GNSS data.

Depending on your fieldwork methodology, the software will process any of the following modes:

  • Static
  • Rapid static
  • Stop and go
  • Kinematic
  • Semi-kinematic
  • OTF (for single and dual frequency receivers)
  • Precise Point Positioning (for static and kinematic files).

All processing is fully automated. Baseline and trajectory computation can be launched in batch mode (as many baselines and trajectories as you want).

Advanced users can adjust various processing parameters to meet special requirements.



Complete Coordinate System

EZSurv offers several predefined «Map Projection/Datum» to help users quickly translate GNSS positions into regional mapping systems.

EZSurv’s Mapping Systems tool provides complete coordinate-system support to customise your own mapping system.

EZSurv supports several datum, ellipsoids and projection templates, as well as Local Grid for small area projects.

Post-processing data is the best procedure to ensure your positions are properly aligned to your regional reference system.

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