Kinematic Surveys; Kinematic Survey Setup - Thales Z-Max Operation And Application Manual

Kinematic Surveys

When using the kinematic method of GPS data collection, one of the GPS receiver
systems is designated as the base. This system remains stationary throughout the
survey while another GPS receiver system (rover), moves about the project area
collecting GPS data at points of interest. If more than two GPS receivers are being
used in the survey, you have two options on how to utilize the additional receivers.
Additional receivers can be configured as rovers, resulting in added productivity
during kinematic data collection. An additional receiver system can also be configured
as a second base station and positioned on a point at the opposite end of the project.
A second base system adds redundancy to each point established with the rover
which can be used during the least squares adjustment.

Kinematic Survey Setup

Base Receiver Setup
The base system for a kinematic survey is set up in precisely the same manner as a
system set up for a static survey, with one possible exception. During kinematic data
collection, it is recommended that a more frequent recording interval be utilized.
Common recording intervals for kinematic data collection are 1-5 seconds. Be sure
that the recording interval for all receivers is set to the same value. Keep in mind that
unless a new recording interval setting has been explicitly saved using the Front
Panel User Interface, it will revert back to the default (or last saved) value after a
power cycle. When a handheld data collector and field application software is used,
all new settings are typically saved automatically.
Rover Receiver Setup
The rover system for a kinematic data collection is set up in a different manner due to
the fact that kinematic data collection is mobile, i.e. the operator must be able to
easily move around the project site with the rover system in order to position objects
of interest. This requires that the rover system be set up in a portable configuration;
either on a survey pole, or as part of a backpack. These two configurations are
described below.
132 Z-Max Surveying System Operation and Applications Manual