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Constructing New Technology: The Crop Circle GPS Cart in Pictures
University of Tennessee (2011)
  • Gregory Keith Bartley, Jr., University of Tennessee, Knoxville
  • Brandon J Horvath, University of Tennessee
The crop circle spectrometer represents a breakthrough in unbiased sensor data. Unlike traditional passive sensors, it pulses light at a speed of 20,000 times per second. With this comes the ability of these filters to discern reflectance measurements from that of natural sunlight, allowing it to be used in environments of sun, shade, and even darkness. From these various reflectance values at different wavelengths, we get measurements of plant health known as vegetation indices. And different vegetation indices can tell us different things about the health of a plant. Couple this with the recent advances in GPS technology, we can now actively correlate each leaf blade’s measurement of health to its respective GPS coordinates, limiting horizontal error to less than one inch, allowing us to produce plant health maps quickly over large area. So exists the potential for this technology to be attached to any vehicle, allowing instant feedback in the form of plant health maps, sent directly to your smartphone or computer to and from any part of the world.
  • crop circle,
  • gps,
  • spectrophotometer,
  • light sensor,
  • vegetation indices
Publication Date
Fall September 15, 2011
Citation Information
Gregory Keith Bartley and Brandon J Horvath. "Constructing New Technology: The Crop Circle GPS Cart in Pictures" University of Tennessee (2011)
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