Thales Navigation gps receiver CGRS Manual

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Thales Navigation gps receiver CGRS
Surveying with ProMark2 65
Surveying with ProMark2
New Point Initialization
The New Point method of kinematic initialization is the most time consuming method. It
should be used only when other methods are not feasible. Observation times for initialization
using the New Point method range from 15-30 minutes for a ProMark2 System. The
observation time depends on the distance between the kinematic base and kinematic rover
during initialization.
The New Point initialization method is simply a static survey of the new point. Observation
times should be consistant with those for performing a static survey. Processing of the data
collected at the initialization point will produce a static vector between the kinematic base and
rover, determining the precise position of the rover point. This in effect initializes the
kinematic survey.
Use the New Point initialization method when no other method is available for initializing your
kinematic survey or in situations where you do not mind the time required to execute this
initialization method.
The most common scenario for using the New Point method of initialization is when the
kinematic base must be positioned away from the project site where the kinematic rover will be
operating. For example, you need to perform your survey based on a control point located off
the project site. In such a situation, you have two options. The first is to set up the kinematic
base on the remote control site and initialize your kinematic rover on site using the New Point
method. The second option is to first perform a static survey between the remote control point
and a new control point on site. Then place the kinematic base on the new control point on site.
Data Collection
With your ProMark2 receiver system set up over the point to be surveyed you are ready to
begin data collection. This section provides you with the step-by-step process of using the
user-interface of the ProMark2 to prepare the receiver to collect GPS data at this survey point.
For further details on any screen presented in these procedures, go to Chapter 4,
Detailed
Screen Descriptions
, and then locate the description for the particular screen of interest.
1. Turn on the ProMark2 receiver by pressing the red on/off button on the face of the
receiver. The opening screen appears, followed by the
Mode screen, Figure 3.29.
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