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FMCW Radar Overview

FMCW Radar Overview. Review of FMCW technology CRREL FMCW Radar Applications FMCW Radar Plans for CLPX?. FMCW Radar Source Signal. Snow Surface. Frequency varies linearly with time. FMCW Radar Parameters. Transit time (2R/c). Beat Frequency. Reference. Target. FMCW Radar Output.

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FMCW Radar Overview

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  1. FMCW Radar Overview Review of FMCW technology CRREL FMCW Radar Applications FMCW Radar Plans for CLPX?

  2. FMCW Radar Source Signal Snow Surface Frequency varies linearly with time

  3. FMCW Radar Parameters Transit time (2R/c) Beat Frequency Reference Target

  4. FMCW Radar Output Mixer Output FFT of Mixer Output

  5. Why FMCW Radar? Inexpensive and easy to operate Field portable and robust Wide bandwidth capability

  6. CRREL FMCW Radar LabVIEW data acquisition 25 dB horn HP microwave source Ku-Band FMCW Radar

  7. FMCW Radar Bandwidth Diversity Resolution ~ 1/Bandwidth

  8. Snow Depth Measurements Ka- and X-band FMCW Radar Experimental Results

  9. Snow Pit Data (Hoar Location) Polar Firn Stratigraphy 0.0 0.5 1.0 1.5 2.0 2.5 Summer 1998 Summer 1997 Summer 1996 Depth (m) Summer 1995 Summer 1994 Summer 1993 FMCW Radar in Greenland 0 20 40 60 80 100 Distance (m) Hoar Stratigraphy

  10. Ice Channel Detection with Microwave FMCW Radar 2- 6 GHz FMCW Radar Excavated Ice Channel Snow Surface Experiment Setup and Results Ice Channels Corner Reflectors

  11. Radar Detection of Landmines Snow Covered Test Site Anti-tank Mines in Frozen Ground

  12. Radar Backscatter Measurements

  13. Electromagnetic Signature of Snow, Ice and Frozen Ground CRREL Test Facility Optical and MMW Radar Data

  14. FMCW Radar for CLPX? Polarimetric backscatter (L,C,X,Ku) Multiband radar properties of snow (C,X,Ku,Ka,V,W) Subsurface melt detection

  15. Mobile Backscatter Measurements B B C C A A

  16. Multiband Radar Properties of Snow Cover C-band (3.9-5.9 GHz) X-band (8-12 GHz) Ka-band (26.5-40 GHz)

  17. Subsurface Melt in Snow Time series measurements.

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