The Detection of Buried Objects
Detection of buried objects using reflected GNSS signals
... value of the correlation peak was used to estimate SNR, this open-loop approach allowed us to develop and im- plement the software procedure to evaluate the entire autocorrelation function, whose knowledge could be used ...
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Studies into the detection of buried objects (particularly optical fibres) in saturated sediment Part 2: design and commissioning of test tank
... Second, there is the design and production of a transducer system. It was the intention that this would be suitable for an investigation into the non-invasive acoustic detection of buried objects. A ...
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Studies into the detection of buried objects (particularly optical fibres) in saturated sediment Part 4: experimental investigations into the acoustic detection of objects buried in saturated sediment
... An important aspect of a practical detection system that has not yet been considered is the response of the detection system hardware. The laboratory system, detailed in the second report in this series 2 , ...
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Studies into the detection of buried objects (particularly optical fibres) in saturated sediment Part 1: background
... for detection by both electromagnetic and acoustic radiations transmitted from an underwater vehicle, to then propagate through the seabed and scatter off the ...
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Studies into the detection of buried objects (particularly optical fibres) in saturated sediment Part 5: an acousto optic detection system
... the detection of targets buried in saturated sediment, primarily through acoustical or acoustics-related ...deployment, detection and recovery 1 ...detect objects buried in the ...
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Studies into the detection of buried objects (particularly optical fibres) in saturated sediment Part 3: experimental investigation of acoustic penetration of saturated sediment
... A similar experiment is documented in the literature [40]. Pace and Ceen conducted a series of measurements of the spatial dependence of waveforms generated by water- borne parametric arrays. In these measurements, the ...
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Innovative inversion approaches for buried objects detection and imaging
... Towards this end, an external iterative FH proedure has been proposed to handle multi-frequeny GPR data, and its om- bination with an internal multi-resolution loop able to mitigate loal[r] ...
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ULTRA-WIDE BAND SIGNAL PROCESSING METHODS FOR POSITIONING BURIED OBJECTS
... radio detection and ranging systems which use signal bandwidths greater than 500 MHz to measure distances with spatial resolutions ∆r < 30 ...hidden objects with a strong electrical contrast to the ...
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Buried-Object Detection Using Time-Reversed Acoustics
... targets buried beneath the ocean floor ...locate buried objects remotely are the chirp sonar and the side-scan sonar ...getting buried in the sediment or damaged by the ...
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Robust Adaptive Detection of Buried Pipes using GPR
... of buried objects such as pipes using a Ground Penetrating Radar (GPR) is intricate for three main ...a detection method: (1) enhancing the signal of interest while reducing the noise and layer ...
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Imaging Of Perfectly Conducting Objects Buried In A Dielectric Cylinder
... Another application area of microwave imaging is non-destructive testing(NDT). Several papers have been published proposing methods for NDT applications [11–15], which have wide range of implementation areas including ...
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Characterization of the Elasticity of Small Objects Buried in Media Based on the Measurements of Photoacoustic Temporal Waveforms
... the detection of ultrasound generated by the optical absorption of ...of objects has been studied by the photoacoustic ...of objects and the resonance frequency of generated photoacoustic ...of ...
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An Objective Assessment of Hyperspectral Indicators for the Detection of Buried Archaeological Relics
... Hyperspectral sensors measure the reflected solar radiation in hundreds of contiguous and narrow spectral bands, and naturally excel at estimating different parameters in vegetated areas, from health status to average ...
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Scattering Analysis of Buried Objects by Using FDTD with Nonuniform Meshes
... Two 1-D modified FDTD equations are employed to set plane wave excitation of the infinite half-space scattering problems. In order to reduce calculation time and meshes, a method with nonuniform meshes is applied. Fine ...
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“Unlocking” the Ground: Increasing the Detectability of Buried Objects by Depositing Passive Superstrates
... non-PEC buried inclusions could be tested in order to find how much the “unlocking” effect is deteriorated compared to the PEC ...elongated objects which can be approximated as 2-D in the transverse plane; ...
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Reconstruction of Objects Buried in Layered Media Based on an Equivalent Current Source
... of Objects Buried in Layered Media Based on an Equivalent Current Source Peng Zhang 1, 2, * , Peng Fei 1, 2 , Xin Wen 1, 2 , and Feng Nian 1, 2 Abstract—In this paper, a novel algorithm based on an ...
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Transverse Resolution in Microwave Imaging for Strip Objects Buried in a Half-Space Medium
... Strip Objects Buried in a Half-Space Medium Maria ...where objects are buried in the lower half-space, and the scattered field is collected in the upper one according to a multi-monostatic ...
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DETECTION AND TRACKING OF MOVING OBJECTS
... Object detection in video image obtained from single camera with static background that means fixing camera is achieved by background subtraction approach A general moving item location and following in light of ...
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INTREPID Buried Cable Perimeter Intrusion Detection System
... icroTrack, the latest addition to Southwest Microwave’s INTREPID ™ family of intrusion detection products, is a new buried cable intrusion detection system for applications where covert perimeter ...
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Leakage Detection in Buried Pipes by Electrical Resistance Imaging
... 5. CONCLUSIONS Kotre [6] proposed a reconstruction algorithm to image impedance distributions based on the sensitivity theorem that does not need any regularisation parameter. We have applied this algorithm to detect ...
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