Modeling of the separated-aperture mine detection sensor using the transmission line matrix (TLM) technique

Kelly D. Sherbondy; Charles A. Amazeen

doi:10.1117/12.211387

20 June 1995 Modeling of the separated-aperture mine detection sensor using the transmission line matrix (TLM) technique

Kelly D. Sherbondy, Charles A. Amazeen

Author Affiliations +

Proceedings Volume 2496, Detection Technologies for Mines and Minelike Targets; (1995) https://doi.org/10.1117/12.211387
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

A numerical time-domain technique known as the transmission line matrix (TLM) method was used to analyze a ground penetrating radar (GPR) concept historically known as the separated aperture technique. This GPR concept is basically a dielectric anomaly (mine) detection sensor which operates near the L band frequency. This mine sensor consists of transmit and receive broadband dipole antenna. Each antenna is contained within a metallic cavity and the cavities are connected by a metallic septum. Normally, when the mine sensor is scanned over homogeneous earth, very little transmitted power is received by the receiving antenna. The power received by the receiving antenna however, is significantly increased when the detector is scanned over a buried dielectric anomaly (mine). This technique has performed in terms of probability of detection and false-alarm rates at different sites with different mine types. The TLM method was used to analyze the separated aperture mine detector's response to targets, clutter, and to provide insight into the fundamental wave interactions.

Citation Download Citation

Kelly D. Sherbondy and Charles A. Amazeen "Modeling of the separated-aperture mine detection sensor using the transmission line matrix (TLM) technique", Proc. SPIE 2496, Detection Technologies for Mines and Minelike Targets, (20 June 1995); https://doi.org/10.1117/12.211387

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