M-SEQUENCE GROUND-PENETRATING RADAR WITH NOVEL FRONT-END CONCEPT

This article deals with the ultra-wideband (UWB) front-end circuits for the ground penetrating radars (GPRs). New concepts for the GPR front-end circuits are proposed, which exploit electrically short active antennas to achieve minimal dimensions and the wide frequency band of the radar system as well as offer enhanced user experience in comparison to the currently used conventional GPR systems. This work suggests using the M-sequence radar as the core for the proposed GPR and sums up the specific issues, which have to be taken into account when designing the device transmitting radio waves through the inhomogeneous high-attenuation environment, typical for the GPR. Additionally, an overview of commercially available GPR antennas in the frequency band below 300 MHz is introduced for the comparison with the proposed solution. The theoretical working principles are discussed and confirmed by the measurements to pave the way for the future research.

[1]  J. Sachs,et al.  High resolution non-destructive testing in civil engineering by ultra-wideband pseudo-noise approaches , 2008, 2008 IEEE International Conference on Ultra-Wideband.

[2]  B. Levitas.  UWB Time Domain Measurements , 2007 .

[3]  J. Sachs,et al.  Preliminary investigations of chest surface identification algorithms for breast cancer detection , 2008, 2008 IEEE International Conference on Ultra-Wideband.

[4]  B. Levitas,et al.  Evaluation of UWB ISAR image resolution , 2005, European Radar Conference, 2005. EURAD 2005..

[5]  Jürgen Sachs,et al.  Handbook of Ultra-Wideband Short-Range Sensing: Theory, Sensors, Applications , 2012 .

[6]  Reinaldo Perez.  Handbook of electromagnetic compatibility , 1995 .

[7]  Henning Harmuth,et al.  Radiation of Nonsinusoidal Waves by a Large-Current Radiator , 1985, IEEE Transactions on Electromagnetic Compatibility.

[8]  Ralf Wunderlich,et al.  UWB LNAs for ground penetrating radar , 2009, 2009 IEEE International Symposium on Circuits and Systems.

[9]  Zhiqiang He,et al.  Study on Signal Processing of FMCW Ground Penetrating Radar , 2009, 2009 International Conference on Measuring Technology and Mechatronics Automation.

[10]  I. D. Longstaff,et al.  Gated stepped-frequency ground penetrating radar , 2000 .

[11]  Rapid monitoring of selected food properties using microwave dielectric spectra , 2000, ICMMT 2000. 2000 2nd International Conference on Microwave and Millimeter Wave Technology Proceedings (Cat. No.00EX364).

[12]  Akihiro Kajiwara,et al.  Wireless motion sensor using ultra-wideband impulse-radio , 2010, 2010 IEEE Radio and Wireless Symposium (RWS).

[13]  Pavol Galajda,et al.  A new approach to construction of extended kit for M-Sequence UWB sensor system based on LTCC , 2016 .

[14]  D. Daniels.  Ground Penetrating Radar , 2005 .

[15]  D. Kocur,et al.  Electrically short antenna with ground-coupling measurement for M-sequence ground penetrating radar , 2017, 2017 Progress in Electromagnetics Research Symposium - Fall (PIERS - FALL).