The Acoustic Signatures Of Proud And Buried Mine-like Objects And Their Temporal Variation
نویسنده
چکیده
My objective in this effort is to process and interpret acoustic monitoring data taken on both mine shapes and localized biological treatments during the 1995 ORCAS experiment. The ORCAS data allows examination of the acoustic scattering from mines and biological treatments for up to two months. Four types of results can be produced using the data: backscattering, scan-to-scan decorrelation, cumulative decorrelation relative to a reference scan, and bathymetry. The goal is to examine the results in combination to quantify, interpret, and guide future research on the temporal variations of scattering from bottom deployed mines. Of particular interest to me are the temporal variations of scattering from buried objects.
منابع مشابه
Spatio-Temporal Variation of Suspended Sediment Concentration at Downstream of a Sand Mine
The growing population led to greater human need to use natural resources such as sand and gravel mines. Direct removal of sands from the bed river leads to increase suspended sediment concentrations in downstream of harvested area and creates other problems viz. filling reservoirs, change in hydraulic characteristics of the channel and environmental damages. However, the range of temporal and ...
متن کامل3D Modelling of Under Ground Burried Objects Based on Ground Penetration Radar
There is a growing demand for mapping and 3D modelling of buried objects such as pipelines, agricultural hetitage, landmines and other buried objects. Usually, large scale and high resolution maps from these objects are needed. Manually map generation and modeling of these objects are cost and time consuming and is dependent on lots of resources. Therefore, automating the subsurface mapping and...
متن کاملBistatic Synthetic Aperture Imaging of Proud and Buried Targets From an AUV
The use of autonomous underwater vehicles (AUVs) for the detection of buried mines is an area of current interest to the Mine CounterMeasures (MCM) community. AUVs offer the advantages of lower cost, stealth, reduced operator risk, and potentially improved coverage rates over more traditional mine hunters. However, AUVs also come with their own set of difficulties, including significant error i...
متن کاملBasic Physical Principles and Mine Features Exploited by the Technology
Acoustic-to-seismic (A/S) coupling–based mine detection is based on the ability of sound to penetrate the ground and excite resonances in buried compliant objects [1]. Sound produced in the air efficiently couples into the first 0.5 m of the soil because of the porous nature of weathered ground resulting in acoustic vibrations that are sensitive to the presence of buried mines. This phenomenon ...
متن کاملLand mine detection measurements using acoustic-to-seismic coupling
During the early 1980s, the phenomenon of acoustic-to-seismic coupling was used to detect buried objects or mines. In these early measurements, large 2 Hz geophones measured the low frequency (50-300 Hz) normal component of the soil particle velocity over buried targets. Several different, naturally-occurring ground types were studied in these measurements, including grass-covered ground; bare,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010