Detection of shallow buried nonmetallic landmine and estimation of its depth at microwave X-band frequency

K. C. Tiwari; D. Singh; M. Arora

doi:10.1117/12.818336

29 April 2009 Detection of shallow buried nonmetallic landmine and estimation of its depth at microwave X-band frequency

K. C. Tiwari, D. Singh, M. Arora

Author Affiliations +

Proceedings Volume 7308, Radar Sensor Technology XIII; 73080K (2009) https://doi.org/10.1117/12.818336
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

Current methods of demining are mostly ground or vehicle based and therefore extremely time consuming, risky and also do not produce low false alarm rates. Detection of landmines using airborne and satellite based sensors are a viable risk free alternative. However extracting mine like features from data captured using airborne and satellite based sensors using signal and image processing techniques with low false alarm rates is a subject of active research. Microwave remote sensing in X-band (10 GHz, 3 cm) frequency has the capability for both subsurface penetration and resolution of landmines as well as non-lethal targets. In the present study, a set of experiments under laboratory conditions have been carried out using dummy landmines without explosives buried to different depths up to 10 cm in dry smooth sand. The data generated through the experiments is processed through a series of image processing steps and a region of interest segmented using Otsu and Maximum Entropy based thresholding methods. The region of interest is masked and the average observed backscatter containing the mine further processed through an electromagnetic model developed and optimized using genetic algorithm for estimation of depth. The method does not have any requirement of separate training and test data set to train the optimizer and validate the results. The results under laboratory conditions indicate satisfactory results both for detection of shallow buried landmines and estimation of depth.

Citation Download Citation

K. C. Tiwari, D. Singh, and M. Arora "Detection of shallow buried nonmetallic landmine and estimation of its depth at microwave X-band frequency", Proc. SPIE 7308, Radar Sensor Technology XIII, 73080K (29 April 2009); https://doi.org/10.1117/12.818336

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