Javad GISmore, Руководство оператора

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Description and Operation
Setup and Survey
Single-Frequency Static Surveying
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An example of GISmore installation is inside of safety helmet of operator and on the standard pole:
Figure 1-5. GISmore possible installation
6.2. Single-Frequency Static Surveying
This method, sometimes called static surveying, is used surveying projects that require high accuracy. In
this method, each receiver at each point logs data continuously for a pre-planned length of time. The
duration of data collection depends on
• required precision
• number of visible satellites
• satellite geometry (DOP)
• whether the receivers are single frequency or dual frequency
• distance between receivers
Static surveying is the classic survey method, well suited for all kinds of baselines (short, medium, long).
At least two receiver antennas, plumbed over survey marks, simultaneously collect raw data at each end
of a baseline during a certain period of time. These two receivers track four or more common satellites,
have a common data logging rate (5–30 seconds), and the same elevation mask angles. The length of the
observation sessions can vary from a few minutes to several hours. The optimal observation session
length depends on the surveyor’s experience as well as the following factors:
Generally, single-frequency receivers are used for baselines whose lengths do not exceed 15 kilometers
(9.32 miles). For baselines of 15 kilometers or greater, use dual-frequency receivers.
After the survey completes, data the receivers collect can be downloaded onto a computer and processed
using post-processing software (for example, JAVAD GNSS Justin).
6.3. Kinematic (Stop & Go) Surveying
In a kinematic, stop and go survey, the stationary receiver (Base station) is set up at a known point such as
a survey monument, or an unknown point. The receiver continually tracks satellites and logs raw data into
its memory. The Rover receiver is set up at an unknown point and collects data in static mode for 2 to 10
minutes. When finished, assign the Rover to kinematic status and move to the next survey point. At this