Trimble Static Survey Method: How We Doing Static Survey in Trimble GPS GNNS system

Описание: In This Video We Discuses ON Static Survey Method: How we start Static Survey, How We connect GNNS Receiver Rover and Its working After Start Static Work, We Will Explain in this Video .

1. Introduction to Static GPS/GNSS
Static GNSS surveys deliver the highest-accuracy positions available in a system, which
occupies a point for longer periods of time than kinematic systems. Static systems include a
range of survey styles from rapid static surveys to continuously operating stations, such as CORS
and PBO sites. The equipment setup varies significantly, depending on how long the site will be
operational, which could vary from 15 minutes to several years. For the practicality of this field
module, instructional material will focus on surveys ranging from rapid static to semi-permanent
installations. Continuously operating permanent stations require many of the same techniques as
other static systems, but require a level of precision and detail in their installation and processing
that is beyond the level of this course.
Static surveys rely on long occupation times to produce high-accuracy positions, and the details
of their setup will vary to reflect the quality of measurements required. A static survey typically
consists of a single receiver and antenna combination, which individually records satellite
observations that are post-processed using a variety of techniques to receive a position. The
precision of the position is a function of the length of survey and also the precision of the
mounting and monument system used. Static surveys require much more stable and precise
mounts than kinematic surveys. A typical mounting system ranges from a range pole and bipod
for rapid static occupations to anchored rods with direct antenna mounts for permanent surveys.
1.1 Rapid Static Survey
Rapid static surveys use shorter occupation times to collect a moderate number of points. They
do this by occupying a given point for a longer period of time than most kinematic surveys but
much less than regular static surveys (Section 1.2 below); typically, rapid static surveys are 15
minutes to 2 hours. A static survey is advantageous due to the simplicity of its setup, using a
single antenna and receiver combination that has half as many components as a kinematic setup.
This configuration is also necessary when radio communications or baseline distances for a
survey exceed the capability of a kinematic design. However, static surveys typically have
reduced accuracy compared to a kinematic survey of the same occupation time. Rapid static
surveys also rely on proximity and availability of CORS or IGS stations for positional
corrections.
1.2 Static Surveys
Static surveys offer the second highest precision of static surveys by occupying a single location
for occupation times ranging from 2 to 48 hours. When processed through OPUS, static surveys
have a maximum accuracy of ~1–2 cm, depending on the quality and length of data collection.
This is most comparable to accuracies achievable by PPK systems with long baselines, but in
general PPK surveys are recommended if a local base station with short baseline is possible.
Static surveys are conducted and processed in the same way as a rapid static survey, but typically
use higher-precision mounts and more equipment, such as large batteries, solar panels, and
equipment enclosures to support the GNSS receivers during the length of the survey. The amount
of equipment needed increases with increased occupation times. See Section 2.3 for advice on
batteries and length of surveys with some known hardware configurations.







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