LearnGPR

Wave Propagation

Wave Characteristics & Basic Terms

Wave Frequencies

Types of Waves

Antenna Basics

Frequency Comparison

GPR Signal Direction

Signal Polarity

Comparison of GPR Signals

Wave Characteristics and GPR Antenna Final Quiz

Lesson 1 Exit Survey

Introduction and Definitions

Velocity

Signal Attenuation (Decay)

General Relationships

Complication - Uncorrelated Materials

Complication - Changing Wavelengths

Calculating Wavelengths

Complication - Heterogeneous Materials

Physical Properties of Materials Final Quiz

Lesson 2 Exit Survey

Refraction

Reflection

Transmission

Reflection Coefficients (simple examples)

Concrete/Clay

Concrete/Sand

Clay/Bedrock

Buried Pipe (Water Filled)

Polarity Shifts (Concrete Scanning)

GPR Wave Behavior, Reflection Coefficients, and Signal Polarity Final Quiz

Lesson 3 Exit Survey

Building 1D Traces

Modeling Layers in 2D

Multiples in Layers

Modeling Objects/Targets in 2D

Effects of Orientation on Hyperbola Size

Modeling GPR Data with Psudo-3D Time Slices

Other Ways to Model GPR Data in 3D

Modeling GPR Responses Final Quiz

Lesson 5 Exit Survey

Utility Locating

Concrete Scanning

Locating Underground Storage Tanks (USTs)

Ground Water Investigations

Detecting Voids

Locating Abandoned Mine Shafts

Archaeology

Applications & Case Studies of GPR Final Quiz

Lesson 4 Exit Survey

5 Essential Steps

Is GPR Appropriate?

Design Your Survey

Control What You Can Control

Take Detailed Notes

Download & Process Immediately

Steps for a Successful Survey Final Quiz

Lesson 6 Exit Survey

GPR Basics Final Exam

Before you go...