Mapping the Underworld: Multi-Sensor Device Creation, Assessment, Protocols

Engineering

1. Antenna 100%
2. Sensor Device 93%
3. Orthogonal Frequency Division Multiplexing 75%
4. Trenchless Technology 72%
5. Utility Location 68%
6. Infrastructure 68%
7. Ground Penetrating Radar Systems 65%
8. Target Tracking 62%
9. Radar Target 62%
10. Classification Algorithm 62%
11. Cross Section 62%
12. Step Change 43%
13. Research Project 41%
14. Sensor Data 41%
15. Magnetic Field 40%
16. Ultra-Wideband 37%
17. Radar Data 37%
18. Multiple Sensor 34%
19. Cut Method 31%
20. Condition Assessment 31%
21. Synthetic Aperture Radar Images 31%
22. Sidelobes 31%
23. Iron Pipe 31%
24. Trenching 31%
25. Horizontal Direction 31%
26. Research Need 31%
27. Road Pavement 31%
28. Radar Equipment 31%
29. Image Formation 31%
30. Impulse Response 31%
31. Main Lobe 31%
32. Measurement System 31%
33. Measured Data 31%
34. Target Response 28%
35. Buried Object 28%
36. Broadening 20%
37. Sweep Frequency 20%
38. Frequency Modulated Continuous Wave 18%
39. Standing Wave Ratios 15%
40. Nonlinearity 15%
41. Clear Indication 14%
42. Frequency Estimation 14%
43. Target Position 14%
44. Induced Corrosion 12%
45. Fiber Cable 12%
46. Continuous Wave 12%
47. Static Field 12%
48. Fiber Optics 12%
49. Daily Life 10%
50. Stress Relief 10%
51. Lateral Stress 10%
52. Technical Challenge 10%
53. Static Loading 10%
54. Telecommunication 10%
55. Pipeline Engineering 10%
56. Field Trial 10%
57. Renewals 10%
58. Natural Gas 10%
59. Proof-of-Concept 10%
60. Lifecycle 10%
61. Catastrophic Failure 10%
62. Ground Surface 10%
63. Dynamic Loads 10%
64. Original Spectrum 10%
65. Sustainability Assessment 10%
66. Initial Phase 10%
67. Living Standard 10%
68. Application Area 10%
69. Service Life 10%
70. Data Source 10%
71. Side Lobe 10%
72. Fast Fourier Transform 10%
73. Transients 10%
74. Measured Signal 10%
75. Review Paper 10%
76. Fourier Transform 10%
77. System Parameter 7%
78. Potential Benefit 7%
79. Signal Processing 6%
80. Service Connection 6%
81. Pulse Shape 6%
82. Gas Pipeline 6%
83. Field Data 6%
84. Pipe Wall 6%
85. Surrounding Ground 6%
86. Clay Soil 6%
87. Sensor System 6%
88. Buried Pipelines 6%
89. Local Area Network 6%
90. Cast Iron Pipe 6%
91. Feasibility Study 6%
92. Radar Transmitter 6%
93. TV 6%
94. Acoustic Field 6%
95. Signal Attenuation 6%
96. Delta Function 6%
97. Reliable Assessment 6%
98. Plastic Pipe 6%
99. Mutual Interaction 6%
100. Frequency Content 6%
101. Operating Parameter 6%
102. Surface Soil 6%
103. Structure Surface 6%
104. Digital Radio 6%
105. Radar Signal 6%
106. Propagation Path 6%
107. Subsurface 6%
108. Penetration Depth 6%
109. Acoustic Signal 6%
110. Target Information 6%
111. Lesser Degree 6%
112. Pulse Frequency 6%
113. Success Rate 6%
114. Modulation Scheme 5%
115. Demodulation 5%
116. Antenna Configuration 5%
117. Adaptability 5%