Work flow of signal processing data of ground penetrating radar case of rigid pavement measurements

Post Processing ◽

Data Survey ◽

Ground Penetrating Radar (GPR) adalah salah satu jenis radar yang digunakan untuk menyelidiki kondisi di bawah permukaan tanah tanpa harus menggali dan merusak tanah. Sistem GPR terdiri atas pengirim (transmitter), yaitu antena yang terhubung ke generator sinyal dan bagian penerima (receiver), yaitu antena yang terhubung ke LNA dan ADC yang kemudian terhubung ke unit pengolahan data hasil survey serta display sebagai tampilan output-nya dan post processing untuk alat bantu mendapatkan informasi mengenai suatu objek. GPR bekerja dengan cara memancarkan gelombang elektromagnetik ke dalam tanah dan menerima sinyal yang dipantulkan oleh objek-objek di bawah permukaan tanah. Sinyal yang diterima kemudian diolah pada bagian signal processing dengan tujuan untuk menghasilkan gambaran kondisi di bawah permukaan tanah yang dapat dengan mudah dibaca dan diinterpretasikan oleh user. Signal processing sendiri terdiri dari beberapa tahap yaitu A-Scan yang meliputi perbaikan sinyal dan pendektesian objek satu dimensi, B-Scan untuk pemrosesan data dua dimensi dan C-Scan untuk pemrosesan data tiga dimensi. Metode yang digunakan pada pemrosesan B-Scan salah satunya adalah dengan teknik pemrosesan citra. Dengan pemrosesan citra, data survey B-scan diolah untuk didapatkan informasi mengenai objek. Pada penelitian ini, diterapkan teori gradien garis pada pemrosesan citra B-scan untuk menentukan bentuk dua dimensi dari objek bawah tanah yaitu persegi, segitiga atau lingkaran.

A Study on Signal Processing of Array-type Ultra Wideband based Ground Penetrating Radar for Landmine Detection

Journal of the Institute of Electronics and Information Engineers ◽

10.5573/ieie.2021.58.9.91 ◽

2021 ◽

Vol 58 (9) ◽

pp. 91-96

Author(s):

Dong-Hyun Kim ◽

Soon-Ho Choi

Keyword(s):

Signal Processing ◽

Landmine Detection ◽

Ultra Wideband ◽

Array Type ◽

Signal Processing For Tree-Trunk Investigation Using Ground Penetrating Radar

10.3997/2214-4609.201902601 ◽

2019 ◽

Cited By ~ 1

Author(s):

Iraklis Giannakis ◽

Fabio Tosti ◽

Livia Lantini ◽

Daniel Egyir ◽

Amir M. Alani

Keyword(s):

Signal Processing ◽

Tree Trunk ◽

Acquisition and Signal Processing of Ground-Penetrating Radar for Shallow Exploration and Open-Pit Mining

Exploration Geophysics ◽

10.1071/eg992017 ◽

1992 ◽

Vol 23 (1-2) ◽

pp. 17-22 ◽

Cited By ~ 2

Author(s):

P. L. Baker ◽

J. P. Cull

Keyword(s):

Signal Processing ◽

Open Pit ◽

Open Pit Mining ◽

Effects of Signal Processing and Antenna Frequency on the Geostatistical Structure of Ground-Penetrating Radar Data

Journal of Environmental and Engineering Geophysics ◽

10.4133/jeeg9.4.201 ◽

2004 ◽

Vol 9 (4) ◽

pp. 201-212 ◽

Cited By ~ 6

Author(s):

Greg A. Oldenborger ◽

Michael D. Knoll ◽

Warren Barrash

Keyword(s):

Signal Processing ◽

Radar Data ◽

Signal processing of ground-penetrating radar data for subsurface object detection

10.1117/12.445499 ◽

2001 ◽

Cited By ~ 5

Author(s):

Pei-ju Chiang ◽

Stacy L. Tantum ◽

Leslie M. Collins

Keyword(s):

Signal Processing ◽

Object Detection ◽

Radar Data ◽

Ground-penetrating radar signal processing techniques for road subsurface measurements

10.1117/12.354587 ◽

1999 ◽

Author(s):

Jason M. Cowdery ◽

James L. Kurtz

Keyword(s):

Signal Processing ◽

Radar Signal ◽

Radar Signal Processing ◽

Ground Penetrating ◽

Processing Techniques ◽

Signal Processing Techniques

GPR APPLIED TO RIGID PAVEMENT FROM SANTOS DUMONT AIRPORT, RJ

Brazilian Journal of Geophysics ◽

10.22564/rbgf.v32i2.454 ◽

2014 ◽

Vol 32 (2) ◽

pp. 225

Author(s):

Welitom Rodrigues Borges ◽

Luís Anselmo Da Silva ◽

Luciano Soares Da Cunha ◽

Raimundo Mariano Gomes Castelo Branco ◽

Márcio Muniz de Farias

Keyword(s):

Electromagnetic Wave ◽

Rio De Janeiro ◽

Concrete Slab ◽

Geophysical Investigation ◽

Rigid Pavement ◽

Ground Penetration Radar ◽

Speed Of Propagation ◽

Ground Penetrating ◽

Pavement Thickness

ABSTRACT. This paper presents the results of a research performed by using Ground Penetration Radar (GPR) to evaluate the structure of the rigid pavement ofSantos Dumont Airport in Rio de Janeiro, Brazil. The GPR data profiles were acquired with 250 and 700 MHz shielded antennas. The geophysical investigation wasperformed along of 6 profiles, totaling 1432 meters of GPR sections. For calibration of the speed of propagation of electromagnetic wave were drilled three boreholesuntil the depth of 1.8 m. The results of GPR allowed the precise delineation of reflectors related to geotechnical interfaces (pavement thickness – concrete slab andmacadam) and geological (sand/embankment soil), showing the efficiency of this method in this case study.Keywords: GPR, concrete, rigid pavement, Santos Dumont Airport. RESUMO. Este trabalho apresenta o resultado de uma pesquisa desenvolvida usando Ground Penetrating Radar (GPR) para avaliar a estrutura do pavimento rígido do pátio de manobras de aeronaves do Aeroporto Santos Dumont, no Rio de Janeiro, Brasil. Para isso foram usadas antenas blindadas com frequências de250MHz e de 700 MHz. Os dados de GPR foram adquiridos no modo common offset , ao longo de 6 perfis que totalizam 1432 metros de investigação. Para a calibração da velocidade de propagação da onda eletromagnética foram executados três furos de sondagem até a profundidade de 1,8 m. Os resultados de GPR possibilitaram odelineamento preciso de refletores relacionados a interfaces geotécnicas (espessura do pavimento – revestimento de concreto e do macadame) e geológicas (areia/aterrocom entulho), mostrando a eficiência da aplicação deste método neste estudo de caso.Palavras-chave: GPR, concreto, pavimento rígido, Aeroporto Santos Dumont.