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Jose R. Linares Photonics Technology Department (PTD)

Controlling Coherent Lidar System with LabView. Jose R. Linares Photonics Technology Department (PTD). Project Leaders: David A. Kozlowski, Steven M. Beck. Why Dust Devils?. Some Applications: - Surveillance -Remote Sensing -Tracking -Soft Rotating Targets

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Jose R. Linares Photonics Technology Department (PTD)

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  1. Controlling Coherent Lidar System with LabView • Jose R. Linares • Photonics Technology Department (PTD) Project Leaders: David A. Kozlowski, Steven M. Beck

  2. Why Dust Devils? Some Applications: - Surveillance -Remote Sensing -Tracking -Soft Rotating Targets -Dust Devils • Tornado Vortex in • El Segundo, CA 2006 Dust Strom in Arizona 2007 Dust Devil in Eloy, Arizona A dust devil on Mars photographed by the Spirit rover on Sol 486 (the 486th day of the Martian year). Credit: NASA

  3. ~ 700ft ~ 80ft Deployment site: Eloy ,Az Date: May 30,2008

  4. Coherent Lidar Methods Illuminating Solid moving Objects 2007 Deployment Time Domain FFT STFT Velocity Range (Modulated by Vel.)

  5. Range with 37.5mm Resolution

  6. Azimuth Scan Elevation Scan Scanning Capability ∆X y H2 y H1 H2 H1 az 2 North North el 2 az 1 el 1 az z el 2 el 1 z x x

  7. Working On New Scanning Capability Images captured by IR Credit: Advanced Scientific Concepts, Inc. - Get absolute range distances from target up to 5km

  8. Point of Contact: David A. Kozlowski

  9. System Hardware Camera#1 Camera#2 is co-borsighed with 1550nm Laser GPS Antenna Video combiner IRIG-B date/time to Daq System IRIG-B Date/time stamp Video to DVR IRIG-B Date/time stamp For Data & Video 05/08/2009 11:01:24

  10. Program Overview Main Loop #1 -Int Stage (program and instruments) -Data Capture Stage -Data Save(binary) Stage -Move Pointer Stage -Update Polar Plot Stage -Scan option -Program Close Stage Queue is used to pass data from save stage to FFT Loop#2 • FFT Loop #2 • Performs FFT-based spectral measurements • on target frequency response • Obtains peak frequency and calculates • target distance(m) from pointer. • -Calculates target latitude and longitude. • - Saves calculated values as a .kml file • G.E. Loop #3 • Opens .kml file • Plots calculated latitude and longitude on • Google Earth • target distance(m). • -Also calculates target latitude and longitude • Features • - Scan Targets • - Keeps track of the total # of captured data shots per day and per button activation • - Polar plot gives us topographical pointer position • Only plots target on Google Earth if target return is greater then set filter value

  11. Program Front Panel

  12. Program Block Diagram Main Loop #1 FFT Loop #2 Goggle Earth Loop #3

  13. Coherent Lidar Methods 2007 Deployment Challenges: Relentless Heat, Pounding Sunshine, Dust, Bugs, Snakes and Wild Dogs

  14. Choosing Vehicle Wanted This FY08, funding issues made us move from this platform to

  15. Got This

  16. Retrofitting Cargo Container • Some of the task performed • during construction included • - Welding • - Electricity • Install Insulation • Cut holes • Install floor • Install wood panels David Kozlowski Jose Linares Steve Beck Mike Williams

  17. Coherent LIDAR Container

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