GeoLab General Course Outline

By: Microsearch  09-12-2011

 
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GeoLab Course Outline  
Introduction
The GeoLab training program has been designed to introduce users of GeoLab, experienced in the principals of least squares adjustments, to the software tools and recommended procedures used for network adjustments. Students will benefit from a straightforward and practical approach to setup, adjustment, analysis, and reporting through a series of relevant classroom exercises.This hands-on program can be divided into three modules as follows (note that actual course content depends on your requirements and our summaries here are for general information purposes only):GeoLab Basic - A general overview of the features, options, input files, adjustment procedures and results reporting on the adjustment of all of survey data types.GeoLab Tools - An introduction and overview of the main GeoLab software tools including the Record Editor, Network Assistant, Geoid Manager, Station Data Calculator and Coordinate Transformer.GeoLab Adjustments - The heart of the program. Following a detailed review of the survey data adjustment process, adjustments will be performed on a variety of GPS data sets. Network simulation for pre-analysis will also be covered.
Overview of GeoLab and GPS Data Adjustments

Module 1 - GeoLab Basics:
GeoLab Features and Benefits
Features Overview
Measurement Types (GPS, terrestrial, leveling, ISS etc.)
Who is using GeoLab, and why?
Typical Adjustment Processes Overview
GeoLab Project Options
Network Drawing Options
Adjustment Options
Statistics Options
Output Configuration Options
Output Composition Options
The Options Manager
IOB File Structure
Initial Coordinates
Constraining Coordinates
Using Coordinate Systems
Using SIGMA Records
Overview of IOB Record Types
Using Geoids
IOB File Elements
Options
Linear Units
Map Projections
Reference Ellipsoids
Initial Coordinates
Fixing Coordinates
Sigma Records
The Record Editor
Include Records
Measurement Groups
Measurements
Histograms
Option Files
Data Imports
Adjustment Procedures
Network Setup
Minimal Constraint Adjustments
Over-Constrained Adjustments
Adjustment Analysis
Revising Measurement Accuracies
Results and Reports
Misclosures
Adjustment Summary
Residuals and the Variance Factor
Output Listing Overview
Statistics Summary
Adjusted Coordinates
Confidence Regions
Geoids
The GSP File
The Geoid Manager
The GFIL Record
 
Module 2 - GeoLab Tools:
Configuration Tools
Linear Unit Management
Reference Ellipsoid Management
Map Projection Management
Aliasing Station Names
The Geoid Manager
The Network Assistant
Analysis Tools
The Record Editor
The Adjustment Summary Dialog
Viewing Histograms
Viewing and Analyzing Network Differences
Other Tools
Network Drawings
The Adjusted Coordinates Lister
Coordinate Observations Extraction
The User-Defined Station Data Lister
The Station Data Calculator
The Coordinate Transformer
 
Module 3 - GeoLab Adjustments:
General
Introduction to Surveying Adjustments
Data Types
Network Setup
Minimally Constrained Adjustments
Over-Constrained Adjustments
GPS Survey Styles
Typical 'closed' network
GPS Traverse between known control stations
Single point tie from known control (2, 3 or more)
RTK Network
GPS Data Adjustments
Basic Steps to adjusting a GPS Network
Data import - plug-in, manual
Constraining control values
Adjustment results analysis
Output Listings
Adjustment plots/diagrams and reporting
Outputs and Results Analysis
Configure output listings
Network, traverse adjustment plots
Adjustment listings and Residuals
Geoid Manager
Geoid manager - Setup
Importing geoid models
Practical GPS Exercises
GPS Network Adjustment
GPS Traverse
GPS Single Point Tie (CORS tie)
GPS - RTK Networks
 
GPS Data (cont'd), and Terrestrial & Leveling Data Adjustments

Module 3 - GeoLab Adjustments (cont'd)
Practical GPS Exercises (cont'd)
GPS Network Adjustment
GPS Traverse
GPS Single Point Tie (CORS tie)
GPS - RTK Networks
Horizontal (Conventional) Adjustments
Basic steps to adjusting a typical survey traverse
Closed loop traverse
Traverses between known horizontal control
2D vs.3D traverses
EDM Baselines (calibration)
Data import - plug-in, manual
Constraining control values
Adjustment results analysis
Output Listings
Adjustment plots/diagrams
Misclosure Tools
Set up and configuration
Misclosure types
Data selection/import
Output analysis
Horizontal (Conventional) Adjustments - Practical Exercises
Traverse between known control
Closed loop traverse
Horizontal traverse only
Horizontal and Vertical traverse
 
Terrestrial Data Adjustments (cont'd), Mixed Data Types

Module 3 - GeoLab Adjustments (cont'd)
Horizontal (Conventional) Adjustments - Practical Exercises (cont'd)
Traverse between known control
Closed loop traverse
Horizontal traverse only
Horizontal and Vertical traverse
Leveling Data Adjustments
Basic Steps to adjusting a level network
Closed-loops
Open network, between known BMs
Data import - plug-in, manual
Constraining control values
Adjustment results analysis
Output Listings
Adjustment plots/diagrams
Leveling Adjustments - Practical Exercises
Closed Loop
Between Known Control (BMs)
Integrating and Adjusting Various Types of Survey Data
Basic steps to integrating survey types
Survey types
GPS Network, plus horizontal (conventional) cross ties
GPS Network, plus leveling loops
GPS Network plus mixed horizontal/leveling survey data
Horizontal (Conventional) Survey network with horizontal cross ties
Mixed Conventional Surveys - horizontal traversing and leveling
Data import - plug-in, manual
Constraining control values
Adjustment results analysis
Output Listings
Adjustment plots/diagrams
Mixed Data Sets - Practical Exercises
GPS Network, plus horizontal (conventional) cross ties
GPS Network, plus leveling loops
GPS Network plus mixed horizontal/leveling survey data
Horizontal (Conventional) Survey network with horizontal cross ties
Mixed Conventional Surveys - horizontal traversing and leveling
 
 
Mixed Data Types, Advanced Topics

Module 3 - GeoLab Adjustments (cont'd)
Mixed Data Sets - Practical Exercises (cont'd)
GPS Network, plus horizontal (conventional) cross ties
GPS Network, plus leveling loops
GPS Network plus mixed horizontal/leveling survey data
Horizontal (Conventional) Survey network with horizontal cross ties
Mixed Conventional Surveys - horizontal traversing and leveling
   

Module 4 - Advanced Topics and Special Tools
Advanced Topics
Network Simulations
Auxiliary Parameters
Transforming Coordinates
Using Weighted Station Adjustments
Detecting Control Point Problems
Improving Geoid Models
Control closure analysis
Deformation analysis (layering/overlays)
Network Layers - how/when to use them
Coordinate Transformations
Large Networks
GeoLab and Canadian Standards (Canadian course only)
Advanced Topics and Special Tools - Practical
Network Simulations
Weighted Station Adjustments
Deformation Analysis
Adjustment Comparisons (different adjustments compared)
Coordinate Transformations
Geoid Model Improvements
 
 
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