Results 61 to 70 of about 3,126,769 (201)

Small Footprint Full-Waveform Metrics Contribution to the Prediction of Biomass in Tropical Forests

Remote Sensing, 2014
We tested metrics from full-waveform (FW) LiDAR (light detection and ranging) as predictors for forest basal area (BA) and aboveground biomass (AGB), in a tropical moist forest.
Francesco Pirotti, Gaia Vaglio Laurin, Antonio Vettore, Andrea Masiero, Riccardo Valentini   +4 more
doaj   +1 more source

Full Waveform Inversion for NDT using ultrasonic linear arrays

Research and Review Journal of Nondestructive Testing, 2023
Ultrasonic (UT) imaging is a widespread technique for nondestructive testing (NDT). The state-of-the-art UT image reconstruction algorithms are based on delay-and-sum (DAS) operations, which assume constant acoustic velocity across the tested objects ...
Daniel Rossato, Felipe Derewlany Gutierrez, Giovanni A. Guarneri, Thiago Alberto Rigo Passarin, Gustavo P. Pires, Daniel Rodrigues Pipa   +5 more
doaj   +1 more source

Inner core structure behind the PKP core phase triplication [PDF]

, 2015
The structure of the Earth's inner core is not well known between depths of ∼100–200 km beneath the inner core boundary. This is a result of the PKP core phase triplication and the existence of strong precursors to PKP phases, which hinder the ...
Deuss, Arwen, Arwen Deuss, Nienke A. Blom, Seismology, Lauren Waszek, Blom, Nienke A., Paulssen, Hanneke, NWO-VIDI: Full waveform inversion for upper-mantle density structure, Waszek, Lauren, Hanneke Paulssen   +9 more
core   +1 more source

Aboveground Biomass Estimation of Individual Trees in a Coastal Planted Forest Using Full-Waveform Airborne Laser Scanning Data

Remote Sensing, 2016
The accurate estimation of individual tree level aboveground biomass (AGB) is critical for understanding the carbon cycle, detecting potential biofuels and managing forest ecosystems.
Lin Cao, Sha Gao, Pinghao Li, Ting Yun, Xin Shen, Honghua Ruan   +5 more
doaj   +1 more source

Horizontal Geolocation Error Evaluation and Correction on Full-Waveform LiDAR Footprints via Waveform Matching

Remote Sensing, 2023
The geolocation accuracy of spaceborne LiDAR (Light Detection And Ranging) data is important for quantitative forest inventory. Geolocation errors in Global Ecosystem Dynamics Investigation (GEDI) footprints are almost unavoidable because of the ...
Yifang Xu, Sheng Ding, Peimin Chen, Hailong Tang, Hongkai Ren, Huabing Huang   +5 more
doaj   +1 more source

Mantle transition zone structure beneath India and Western China from migration of PP and SS precursors [PDF]

, 2014
We investigate the seismic structure of the upper-mantle and mantle transition zone beneath India and Western China using PP and SS underside reflections offseismic discontinuities, which arrive as precursors to the PP and SS arrival.
Dobson, DP, Rost, S, Thomas, C, Cobden, L, Rost, S., Seismology, NWO-VIDI: Full waveform inversion for upper-mantle density structure, Dobson, D.P., Thomas, C., Lessing, S, Cobden, L., Lessing, S.   +11 more
core   +1 more source

Simulation scripts and data for full waveform inversion using spyro

, 2021
Python scripts, meshes, and P-wave velocity models that were used to perform the 2D and 3D full waveform inversion (FWI) experiments documented in the paper titled "Full waveform inversion using triangular waveform-adapted ...
Keith J. Roberts
core   +1 more source

Full waveform inversion for bore reconstruction of woodwind-like instruments

Acta Acustica, 2021
The internal geometry of a wind instrument can be estimated from acoustic measurements. For woodwind instruments, this involves characterizing the inner shape (bore) but also the side holes (dimensions and location).
Ernoult Augustin, Chabassier Juliette, Rodriguez Samuel, Humeau Augustin   +3 more
doaj   +1 more source

Waveform Modelling for the Laser Interferometer Space Antenna [PDF]

LISA, the Laser Interferometer Space Antenna, will usher in a new era ingravitational-wave astronomy. As the first anticipated space-basedgravitational-wave detector, it will expand our view to the millihertzgravitational-wave sky, where a spectacular ...
Witek, H., Helfer, T., Markakis, C., Gabella, W., Faye, G., Wachter, J., Bozzola, G., Sberna, L., García-Bellido, J., Pan, Z., Hannam, M., Laguna, P., O'Shaughnessy, R., Maggio, E., Kidder, L., Bonga, B., Leather, B., Mourier, P., Spiers, A., Kavanagh, C., Field, S., Yang, H., Ferguson, D., Lukes-Gerakopoulos, G., Paschalidis, V., Isoyama, S., Seoane, P., Rüter, H., Tamanini, N., Lim, H., Antonelli, A., Pfeiffer, H., Dhesi, M., Shoemaker, D., Chua, A., Zilhão, M., Husa, S., Benkel, R., Maselli, A., Durkan, L., Hinderer, T., Neilsen, D., Sundar, H., Pound, A., Vernieri, D., Warburton, N., Küchler, L., Lovelace, G., Bernard, L., Pappas, G., Barausse, E., Buonanno, A., Casals, M., Hughes, S., Upton, S., Green, S., Clough, K., Katz, M., Akçay, S., Thompson, J., Gerosa, D., Nagar, A., Lousto, C., Wardell, B., Pratten, G., Mathews, J., Ruiz, M., Mandel, I., Shapiro, S., O'Toole, C., Littenberg, T., Novák, J., Lynch, P., Tsokaros, A., Pompili, L., Afshordi, N., Chernoff, D., Brito, R., Larrouturou, F., Tiec, A., Barack, L., Haney, M., Nichols, D., Bonetti, M., Witzany, V., Okounkova, M., Colleoni, M., Toubiana, A., Druart, A., van de Meent, M., Aurrekoetxea, J., Gracia-Linares, M., Khanna, G., Oshita, N., Long, O., Berti, E., Bernuzzi, S., Korol, V., Macedo, R., Pani, P., Lim, E., Sam, Z., Cárdenas-Avendanõ, A., Heffernan, A., Sopuerta, C.   +104 more
core   +1 more source

Color Restoration for Full-Waveform Multispectral LiDAR Data

Remote Sensing, 2020
The current full-waveform data at a single wavelength can mainly retrieve the geometric attributes of targets along the light path by detecting waveform components, resulting in the lack of spectral or color attribute information.
Binhui Wang, Shalei Song, Wei Gong, Xiong Cao, Dong He, Zhenwei Chen, Xin Lin, Faquan Li, Jia Sun   +8 more
doaj   +1 more source