What is a Static Site in EZSurv?

Static site in a static file

In EZSurv, we have the concept of Sites. A site is typically a specific period where a receiver antenna remains few seconds, minutes our hours at the same location (which is the site location). The same site can be occupied several times in the same project; this is creating the concept of a site occupation.

 

A site is defined by its name, its related data file, its observation time span, its coordinate, an antenna model and an antenna height. All of theses parameters can be edited in the Edit > Site dialog box.

 

A Base Station and a Static file only includes one site, whereas a Rover and a Semi-kinematic file may include many sites (few seconds or minutes each, the concept of stop-and-go file).

 

When there is one site in a file, EZSurv can detect it and set the file as a Static file with a site covering the whole file time span. If there is more than one site in a file, EZSurv detects it as a Kinematic file a create a Rover (stop-and-go sites).

 

With Static files, the software creates baselines between data sets recorded simultaneously at different sites.

 

A baseline can be defined as a 3D vector between two Sites coming from Static files or Base Station files. In a Post-Processing environment, a baseline can be defined between two sites if they have simultaneous observations. The amount of data required to consider it as simultaneous data sufficient to define a baseline (5, 10, 30, 60 minutes) is user defined. As with sites, you may create baseline occupations. A baseline might have been observed more than once, which means that both sites being part of the same baseline have been occupied at least twice. Typically a baseline is expected to be computed at the centimeter accuracy level.

 

 

Static site in a Rover file

When you are recording sites in a rover file doing stop-and-go data collection (along with raw GNSS data), you are simply recording the necessary data to compute these sites as they could have been calculated in RTK mode. The Post-Processor could be seen as a RTK offline tool (marker positions being calculated after the fact).

 

For instance, when recording data with FieldGenius, you can recalculate all field markers in post-processing for QA control.

Article: 000014

Related Products: EZSurv

Last Update: 2016-07-14 18:44:15

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