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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic


eISSN: 1178-5608



VOLUME 1 , ISSUE 2 (June 2008) > List of articles


Graham Brooker * / Mark Bishop * / Ross Hennessy *

Keywords : Millimetre wave radar, mining, range measurement, scanning, imaging, FMCW

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 1, Issue 2, Pages 315-353, DOI: https://doi.org/10.21307/ijssis-2017-293

License : (CC BY-NC-ND 4.0)

Published Online: 13-December-2017



This paper defines the issues required for the development of successful visualisation sensors for use in open cut and underground mines. It examines the mine environment and considers both the reflectivity of the rock and attenuation effects of dust and water droplets. Millimetre wave technology, as an alternative to the more commonly used laser and sonar implementations, is selected due to its superior penetration through adverse atmospheric conditions. Of the available radar techniques, frequency modulated continuous wave (FMCW) is selected as being the most robust. The theoretical performance of a number of 94GHz FMCW millimetre wave radar systems is determined and these confirm the capability of these sensors in the mining environment. The paper describes implementations of FMCW radar sensors for simple ranging, two dimensional line scanning and three dimensional imaging that are based on a common ranging module and in the case of the 2D and 3D applications, a common swash-plate mirror scanner. Data obtained during field trials in mines is presented to justify the selection of this technology

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  1. Barton, D. (1976). Radar Systems Analysis, Artech House.
  2. Beasley, P. and Stove, A. (1991, May). Pilot-An Example of Advanced FMCW Techniques. IEE Colloquium on High Time-Bandwidth Product waveforms in Radar and Sonar,London.
  3. Beckmann, P. and Spizzichino, A. (1987). The Scattering of Electromagnetic Waves from Rough Surfaces, Artech House.
  4. Bhartia, P. and Bahl, I. (1984). Millimeter Wave Engineering and Applications, John Wiley & Sons.
  5. Blake, L. (1986). Radar Range-Performance Analysis, Artech House.
  6. Blieb, J. and Pulkrabek, M. (1999). Application of a 15 GHz FMCW radar for industrial control and process level measurement. Microwave Symposium Digest, IEEE MTT-S1: 13-19.
  7. Brooker, G. (1993). Finsch Installs World First Ore Level Solution. SA Mining World 12(10).
  8. Brooker, G. (1997). Measurements Made on a Long Ore Pass. Mining World.
  9. Brooker, G. (2005). Long-Range Imaging Radar for Autonomous Navigation. Ph.D,University of Sydney,
  10. Brooker, G. (2008). Introduction to Sensors for Ranging and Imaging, SciTech.
  11. Brooker, G., Lobsey, C. and McHugh, C. (2006, 26-27 September). Development and Application of a Portable Millimetre Wave Cavity Monitoring System. CRC Mining Conference, Hunter Valley, NSW, Australia.
  12. Brooker, G., Scheding, S., Bishop, M. and Hennessy, R. (2005). Development and Application of Millimeter Wave Radar Sensors for Underground Mining. IEEE Sensors Journal 5(6): 1270-1280.
  13. Brooker, G., Widzyk-Capehart, E., Hennessey, R., Bishop, M. and Lobsey, C. (2007). Seeing through Dust and Water Vapour: Millimetre Wave Radar Sensors for Mining Application. Journal of Field Robotics 24(7): 527-557.
  14. Brooker, G. and Youds, S. (2002, 27-28 May 2002). Using Millimetre Wave Radar to Monitor In-Stope Backfilling at Olympic Dam Mine, South Australia. CMMI Conference 2002, International Codes, Technology and Sustainability for the Minerals Industry, Cairns, Australia.
  15. Brumbi, D. (1995, 8-11 May). Measuring Process and Storage Tank Level with Radar Technology. International IEEE radar Conference.
  16. Comparetto, G. (1993). The Impact of Dust and Foliage penetration on Signal Attenuation in the Millimeter wave Regime. Journal of Space Communication 11(1): 13-20.
  17. Currie, N. and Brown, C. (1987). Principles and Applications of Millimeter-Wave Radar,Artech House.
  18. Currie, N., Hayes, R. and Trebits, R. (1992). Millimeter-Wave Radar Clutter, Artech House.
  19. Ghobrial, S. and Sharief, S. (1987). Microwave Attenuation and Cross Polarization in Dust Storms. IEEE Transactions on Antennas and Propagation AP-35(4): 418-425.
  20. Gillett, D. (1979). Environmental Factors Affecting Dust Emission by Wind Erosion. Saharan Dust.
  21. Goldhirsh, J. (2001). Attenuation and Backscatter From a Derived Two-Dimensional Duststorm Model. IEEE Transactions on Antennas and Propagation 49(12): 1703-1711.
  22. Goodsit, M. (1982). Field Patterns of Pulsed, Focussed, Ultrasonic Radiators in Attenuating and Non-attenuating Media. Acoustic Society America 71(2): 318-329.
  23. Groll, H. and Detlefsen, J. (1997). History of Automotive Anticollision Radars and Final Experimental Results of a MM-Wave Car radar Developed by the Technical University of Munich. IEEE AES Systems magazine.
  24. Kielb, J. and Pulkrabek, M. (1999). Application of a 25GHz FMCW Radar for Industrial Control and Process Level Measurement. Microwave Symposium Digest, IEEE MTTS:281-284.
  25. Kirsten, H. (1979). Applying the DFT (FFT). Lecture Notes, University of Stellenbosch.
  26. Kue, R. (1984). Estimating Ultrasonic Attenuation from Reflected Ultrasonic Signals, Comparison of Spectral Shift and Spectral Difference Approach. IEEE Trans. on Acoustic, Speech and Signal Processing. 32(1): 1-6.
  27. Li, Y., Li, X. and Wang, m. (1998, August). An Analysis of Signal of MMW Step Frequency High Resolution Radar with MUSIC Algorithms. International Conference on Microwave and Millimeter wave Technology, ICMMT'98.
  28. Liau, T., Carr, A. and Cuthbert, L. (1986). Using Non-Fourier Techniques in Signal Processing for an FMCW Hidden-Object Detection Radar. IEE Electronics Letters 22(9): 466 to 467.
  29. Longbottom, F. and Eren, H. (1994, May). Ultrasonic Multiple-Sensor Solid Level Measurements. IEEE Instrumentation and Measurement Technology Conference IMTC/94.
  30. Macfarlane, D. and Robertson, D. (2004, October). A 94GHz dual-mode active/passive imager for remote sensing. SPIE Passive Millimetre-Wave and Terahertz Imaging and Technology, London.
  31. Motzer, J. (2000). A pulse radar gauge for level measurement and process control. Microwave Symposium Digest, IEEE MTT-S 3.
  32. Nagy, W. and Wilhelm, J. (1996, 13-16 may). System and Parametric Tradeoffs of Forward Looking Automotive Radar Systems. IEEE National Radar Conference, Ann Arbor, Michigan.
  33. Nelson, S. (2001). Measurement and Calculation of Powdered Mixture Permittivities. IEEE Transactions on Instrumentation and Measurement 50(5): 1066-1070.
  34. Ondria, J. and Cardiasmenos, A. G. (1980, 22-24 October). Desensitisation of Spread Spectrum Radar Systems by Far Off the Carrier Noise Generation in Millimeter Sources. 2nd Military Microwaves Conference (MM80), London, England.
  35. Patterson, E. (1977). Atmospheric Extinction Between 0.55um amd 10.6um due to Soil-Derived Aerosols. Applied Optics 16(9): 2414-2418.
  36. Perry, B. and Baden, J. (2000). Effectiveness of MMW Aerosols in Defeating Battlefield Surveillance Radar: Field Demonstration Preliminary Results. IEEE AES Systems Magazine: 11-20.
  37. Pichler, M., Gulden, P., Vossiek, M. and Stelzer, A. (2003). A 24-GHz Tank Level Gauging System with State-Space Frequency Estimation and a Novel Adaptive Model Order Selection Algorithm. Microwave Symposium Digest, IEEE MTT-S 3: 1953-1956.
  38. Pinnick, R., Fernandez, G. and Hinds, B. (1983). Explosion Dust Particle Measurements. Applied Optics 22(1): 95-102.
  39. Pinnick, R., Fernandez, G., Hinds, B., Bruce, C., Schaefer, R., et al. (1985). Dust Generated by Vehicular Traffic on Unpaved Roadways: Sizes and Infrared Extinction Characteristics. Aerosol Science and Technology 4(1): 99-121.
  40. Preissner, J. (1978, February). The Influence of the Atmosphere on Passive Radiometric Measurements. AGARD Conference Reprint No. 245: Millimeter and Submillimeter Wave Propagation and Circuits.
  41. Reeves, B., Stickley, G., Noon, D. and Longstaff, D. (2000, July). Developments in Monitoring Mine Slope Stability using Radar Interferometry. Geoscience and remote Sensing Symposium, IGARSS 2000, Honolulu, HI, USA.
  42. Skolnik, M. (1980). Introduction to Radar Systems, McGraw-Hill Kogakusha.
  43. Skolnik, M. (1990). Radar Handbook, McGraw Hill.
  44. WeiB, M. and Knochel, R. (1997, September 8-12). A Highly Accurate Multi-target Microwave Ranging System for Measuring Liquid Levels in Tanks. 27th European Microwave Conference.
  45. Widzyk-Capehart, E., Brooker, G., Hennessy, R. and Lobsey, C. (2005, 26-28 September). Rope Shovel Environment Mapping for Improved Operation using Millimetre Wave Radar. CRC Mining Conference, Fremantle, WA.
  46. Zimmermann, B. and Wiesbeck, W. (1996). 24 GHz Microwave Close Range Sensors for Industrial Measurement Applications. Microwave Journal: 228-238.