Advanced Signal Processing Methods for Ground-Penetrating Radar: Applications to Civil Engineering

Sun, Mingjian; Pan, Jingjing; Bastard, Cédric Le; Wang, Yide; Li, Jianzhong

doi:10.1109/msp.2019.2900454

Cited by 52 publications

(20 citation statements)

References 27 publications

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“…e results of VR can record the implementation of urban planning measures in real time. By modifying and recording the objects in the planned three-dimensional scene at any time, the current status documents of different periods are generated, and all the documents are stored as a database of the urban development process [21].…”

Section: Resultsmentioning

confidence: 99%

Panoramic Display and Planning Simulation of Civil Engineering Project Based on Virtual Reality Technology

2020

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In the traditional civil engineering industry, only abstract theoretical concepts are applied to express complex realistic contents, but this method of information transmission is sometimes very limited for engineering participants, because its expression is not comprehensive and specific and also makes the recipients have difficulty in understanding its information. The rise and development of virtual reality (VR) technology has become a good assistant to overcome this difficulty, providing an extremely effective means for displaying and simulating civil engineering project in real time. This paper introduced the methods and principles of VR platform system and structure dynamic analysis, conducted virtual scene design and three-dimensional modeling of civil engineering project, analyzed the synthetic debugging and simulation roaming of the virtual environment, proposed the engineering model of virtual construction process and planning structure calculation, discussed the realization method of virtual project management and visualization, and finally performed the simulation and its result analysis of panoramic display and planning of civil engineering project based on VR technology. The results show that the VR technology can simulate various environments and activities of civil engineering projects in advance, analyze the rationality of various schemes, and modify their different functional parameters, so it can achieve the simulation optimization of project planning, design, and construction.

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Section: Resultsmentioning

confidence: 99%

Panoramic Display and Planning Simulation of Civil Engineering Project Based on Virtual Reality Technology

2020

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“…Non-destructive testing (NDT) methods are promising by allowing analysis of the properties of a material without destroying the serviceability of the original part. As a typical geophysical NDT method, ground penetrating radar (GPR) has become an established and routine approach of road structure survey with a more extensive measurement coverage in a rapider manner, compared with traditional coring ones [4]- [10]. The vertical structure of pavements can be deduced from radar profiles by means of echo detection and amplitude estimation.…”

Section: Introductionmentioning

confidence: 99%

Time-Delay Estimation by Enhanced Orthogonal Matching Pursuit Method for Thin Asphalt Pavement With Similar Permittivity

Sun

Pan

Wang

et al. 2022

IEEE Trans. Intell. Transport. Syst.

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Time-delay estimation (TDE) for thin top layers of asphalt pavement is a challenging task due to the limited resolution of ground penetrating radar (GPR) as well as small permittivity difference between top layers. Echoes backscattered from the interfaces of top layers with similar permittivity have usually much smaller amplitudes compared with other echoes, which can be called weak signals. The weak backscattered echoes are usually too sensitive to the noise and other strong echoes that current signal processing approaches (subspace-based methods and compressed sensing based methods) might have false estimation results even failures without proper processing of them. Therefore, in this paper, an enhanced orthogonal matching pursuit (OMP) method is proposed to deal with weak signals resulting from similar permittivity of adjacent asphalt layers. Based on the orthogonality between signal and noise subspaces, we firstly apply the truncated singular value decomposition (SVD) on the received signals, in order to reduce the noise impact. Secondly, we build an orthogonal matrix to the mode matrix of the pre-estimated strong backscattered echoes, and map it to the overcomplete dictionary matrix, such that the influence of the residual of the strong backscattered echoes can be reduced. Finally, the time-delays of backscattered echoes and layer thicknesses are estimated. Compared with conventional approaches, the proposed method is more suitable for TDE in thin asphalt pavement detection. The accuracy of the proposed method is validated by both numerical and experimental data.

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“…D IRECTION of arrival (DOA) estimation is a longlasting issue for decades, which is widely used in the field of radar, sonar, source positioning, wireless communication, etc. [1]- [3]. The enormous amount of methods has been proposed to estimate the DOAs of signals, such as subspacebased methods MUSIC and ESPRIT [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Fractional Low-Order Moments Based DOA Estimation With Co-Prime Array in Presence of Impulsive Noise

et al. 2021

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Direction of arrival (DOA) estimation with co-prime array is a hot issue in array signal processing. By using co-prime array structure, the degrees of freedom has been greatly improved, which can estimate much more sources than that of the conventional array structure. In the scenario of impulsive noise, the high-order (2-order or 4-order) moments of received signal do not exist, fractional low-order moments (FLOM) can be applied. In this paper, the concept of the co-prime array is extended to be applied on FLOM of received signal in presence of impulsive noise. And then MUSIC algorithm is used for DOA estimation. The proposed method is tested on the numerical data. The simulation results prove the effectiveness of the proposed method in impulsive noise scheme. INDEX TERMS Co-prime array, impulsive noise, fractional low-order moments (FLOM), direction of arrival (DOA).

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Advanced Signal Processing Methods for Ground-Penetrating Radar: Applications to Civil Engineering

Cited by 52 publications

References 27 publications

Panoramic Display and Planning Simulation of Civil Engineering Project Based on Virtual Reality Technology

Panoramic Display and Planning Simulation of Civil Engineering Project Based on Virtual Reality Technology

Time-Delay Estimation by Enhanced Orthogonal Matching Pursuit Method for Thin Asphalt Pavement With Similar Permittivity

Fractional Low-Order Moments Based DOA Estimation With Co-Prime Array in Presence of Impulsive Noise

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