نتایج جستجو برای: آشکارسازی uxo

تعداد نتایج: 3001  

Journal: :Dalhousie Journal of Interdisciplinary Management 2012

Journal: :Proceedings of Meetings on Acoustics 2021

This paper presents a workflow for UXO detection based on multibeam data in combination with AUV-based ground truth. An artificial neuronal network (ANN) is trained manually annotated and aims making the generation of target lists faster more objective. Prior to annotation checked according several quality factors ensure that it fits purpose object detection. The accuracy annotations has an inf...

2004
Remke L. van Dam Jan M.H. Hendrickx Bruce Harrison Brian Borchers David I. Norman Samuel Ndur Chris Jasper Patrick Niemeyer Robert Nartey David Vega Lucas Calvo Janet E. Simms

The presence of magnetic iron oxides in the soil can seriously hamper the performance of electromagnetic sensors for the detection of buried land mines and unexploded ordnance (UXO). Previous work has shown that spatial variability in soil water content and texture affects the performance of ground penetrating radar and thermal sensors for land mine detection. In this paper we aim to study the ...

Journal: : 2023

روش‌های مختلفی برای زمان­‌سنجی امواج مشابه و با تحریک یکسان ارایه شده است که توجه به شرایط موج می‌­توان بهترین گزینه را انتخاب کرد. لذا هدف ما یافتن روش زمان‌سنجی جهت خروجی از حسگر UFSD زیرا می­‌خواستیم این حسگرها آشکارسازی پروتون‌ها در سیستم پروتون درمانی برای­ درمان ­تومورهای سرطانی استفاده کنیم. راستا مقایسه مختلف مثل تفکیک‌کننده کسر ثابت (CFD)، همبستگی متقابل(CC) زمان بیش آستانه (TOT)با داد...

Journal: :IEEE Trans. Geoscience and Remote Sensing 2001
Kevin O'Neill Shah A. Haider Shireen D. Geimer Keith D. Paulsen

Throughout the world, the problem of buried unexploded ordnance (UXO) poses an enormous, persistent, and expensive problem. While UXO generally consist of sizable bodies of ferrous metal and can therefore be detected, with current technology it is extremely difficult to distinguish them reliably from typically widespread pieces of clutter. Thus the problem is one of subsurface discrimination. O...

2010
AR Soroush F Flahati M Zargar MR Soroush S Khateri A Khaji

BACKGROUND Although in the last few years there has been an increasing attention to the problem of landmines, to date, the implications of women being victims of landmine has not been duly dealt with in the world including Iran, which is estimated to be the second most landmine infested country in the world. Still, provinces by the west border of Iran, 18 years after cessation of Iraq-Iran war ...

2010

As earth scientists seek to address today’s demands to detect, characterize and discriminate buried Unexploded Ordnance (UXO) for remediation and safe disposal, they are increasingly relying on high resolution geophysical methods to provide accurate and efficient detection of land-based and offshore targets. In comparison with traditional sampling procedures, geophysical methods are especially ...

2000
W. E. Doll

W. E. Doll, P. Hamlett, J. Smyre, and D. Bell, Oak Ridge National Laboratory, MS 6038, P O Box 2008, Oak Ridge, TN, 37831-6038; J. E. Nyquist, Temple University, Philadelphia, PA; T. J. Gamey and J. S. Holladay, Aerodat Ltd, Mississauga, Ont Canada Y$MXEIVED HMQ3= ABSTRACT United States Defense Department estimates indicate that as many as 11 million acres o government land in the U. S. may con...

2004
F. Shubitidze I. Shamatava K. Sun

Most unexploded ordinance (UXO) are heterogeneous objects containing parts of different metals, e.g., head, body, tail and fins, copper banding, etc. Recently, low frequency electromagnetic induction (EMI) sensing, based on the EM diffusion phenomena, has shown considerable progress for the detection and discrimination of UXO. EMI responses are sensitive to the type of metal (conductivity and p...

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