Testing a 7 antenna element Spidar PulseEkko 250 rig (6 channels of 60cm separation data). Lithogen Inc. built this custom cart for a client as an R&D projec...
Shameless OC. This is my video of a test I did for an R&D project – the custom cart and GPR rig.
You can’t really tune it for any of those things. It’s much like medical imaging-- you get an unknown blob. In medical imaging, you get a sequence like “this blob is shaped like a bone, so it is almost certainly a bone, but this blob is unknown so we’re ordering a biopsy”. Here you’re effectively do the same, but the patient is the ground.
Like medical imaging, you can sometimes choose different methods (X-ray, CT scan, ultrasound, MRI, etc.) – the different methods are sensitive to different physical contrasts. So if you do multiple scans with different methods, you can improve your interpretations. Likewise, with geophysics, you can use radar, seismic (sound waves), magnetics, even MRI (also known as nuclear magnetic resonance in the physics community). Basically, you need auxillary data to start distinguishing between things well. Sometimes that auxillary data is “I’m expecting to find a storage tank here due to historical records, and sure enough, I find a shape here where it is supposed to be, so let’s assume it is the tank.”
Ah that makes good sense. In my mind I’m just gonna imagine its a big cool gound x-ray cannon. I can imagine it’s good fun to have a look into the ground and see what’s there. Thanks for explaining it to me. I’m a much more mechanical person
You can’t really tune it for any of those things. It’s much like medical imaging-- you get an unknown blob. In medical imaging, you get a sequence like “this blob is shaped like a bone, so it is almost certainly a bone, but this blob is unknown so we’re ordering a biopsy”. Here you’re effectively do the same, but the patient is the ground.
Like medical imaging, you can sometimes choose different methods (X-ray, CT scan, ultrasound, MRI, etc.) – the different methods are sensitive to different physical contrasts. So if you do multiple scans with different methods, you can improve your interpretations. Likewise, with geophysics, you can use radar, seismic (sound waves), magnetics, even MRI (also known as nuclear magnetic resonance in the physics community). Basically, you need auxillary data to start distinguishing between things well. Sometimes that auxillary data is “I’m expecting to find a storage tank here due to historical records, and sure enough, I find a shape here where it is supposed to be, so let’s assume it is the tank.”
Ah that makes good sense. In my mind I’m just gonna imagine its a big cool gound x-ray cannon. I can imagine it’s good fun to have a look into the ground and see what’s there. Thanks for explaining it to me. I’m a much more mechanical person