Results 21 to 30 of about 8,136,705 (229)

Development of a Fast Convergence Gray-Level Co-Occurrence Matrix for Sea Surface Wind Direction Extraction from Marine Radar Images

Remote Sensing, 2023
The new sea surface wind direction from the X-band marine radar image is proposed in this study using a fast convergent gray-level co-occurrence matrix (FC-GLCM) algorithm. First, the radar image is sampled directly without the need for interpolation due
Hui Wang, Shiyu Li, Haiyang Qiu, Zhizhong Lu, Yanbo Wei, Zhiyu Zhu, Huilin Ge   +6 more
doaj   +1 more source

Performance of high-resolution X-band radar for rainfall measurement in The Netherlands [PDF]

, 2010
This study presents an analysis of 195 rainfall events gathered with the X-band weather radar SOLIDAR and a tipping bucket rain gauge network near Delft, The Netherlands, between May 1993 and April 1994.
J. N. M. Stricker, Stricker, J.N.M., H. Leijnse, H. W. J. Russchenberg, Uijlenhoet, R., Van de Beek, C.Z. (author), C. Z. van de Beek, Stricker, J.N.M. (author), Russchenberg, H.W.J. (author), Leijnse, H. (author), Uijlenhoet, R. (author), Russchenberg, H.W.J., Leijnsel, H., R. Uijlenhoet, Beek, C.Z., van de   +14 more
core   +2 more sources

X-Band Radar for Cetacean Detection (Focus on Tursiops truncatus) and Preliminary Analysis of Their Behavior

Remote Sensing, 2020
Cetaceans are protected species all over the world, most of them are vulnerable, endangered, or data deficient (according to International Union for Conservation of Nature - IUCN red list).
Matteo Mingozzi, Francesca Salvioli, Francesco Serafino   +2 more
doaj   +1 more source

An Energy Spectrum Algorithm for Wind Direction Retrieval From X-Band Marine Radar Image Sequences

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this study, an energy spectrum (ES) algorithm is proposed to retrieve wind direction from X-band marine radar image sequences. This algorithm is based on utilizing the occlusion area zero-pixel percentage to distinguish rain-free and rain-contaminated
Hui Wang, Haiyang Qiu, Zhizhong Lu, Lei Wang, Rizwan Akhtar, Yanbo Wei   +5 more
doaj   +1 more source

Porcupine‐Quill‐Inspired Shape‐Morphing Biointerfaces Disassemble Biofilms [PDF]

Advanced science
A porcupine‐spine‐inspired dynamic offensive bio‐interface is developed for active biofilm disassembly. By coupling electrically driven nano‐dagger penetration with light‐triggered ROS generation, the surface overcomes the passive limitations of conventional mechano‐bactericidal topographies, achieving near‐complete biofilm eradication, strong ...
Qian F, Xia M, Wang Z, Jia X, Yin J, Fu M, Zhang X, Shi X, Chen S, Wang N, Chen Z.   +10 more
europepmc   +2 more sources

Measurements and analysis of multistatic and multimodal micro-Doppler signatures for automatic target classification [PDF]

, 2014
The purpose of this paper is to present an experimental trial carried out at the Defence Academy of the United Kingdom to measure simultaneous multistatic and multimodal micro-Doppler signatures of various targets, including humans and flying UAVs ...
Marcio Perassoli, Alessio Balleri, Woodbridge, K., Perassoli, M., Balleri, Alessio, Karl Woodbridge   +5 more
core   +1 more source

Algorithm for sea surface wind retrieval from TerraSAR-X and TanDEM-X data [PDF]

, 2014
A Geophysical Model Function (GMF), denoted XMOD2, is developed to retrieve sea surface wind field from Xband TerraSAR-X/TanDEM-X (TS-X/TD-X) data. In contrast to the previously developed XMOD1, XMOD2 consists of a nonlinear GMF, and thus, it depicts ...
Li, Xiao Ming, Lehner, Susanne
core   +1 more source

A Network of Portable, Low-Cost, X-Band Radars [PDF]

, 2012
Radar is a unique tool to get an overview on the weather situation, given its high spatio- temporal resolution. Over 60 years, researchers have been investigating ways for obtaining the best use of radar.
Allegretti, Marco, Andrea Prato, Marco Allegretti, Giovanni Pero, Prato, Andrea, Lucianaz, Claudio, Perona, Giovanni Emilio, Riccardo Notarpietro, Claudio Lucianaz, Marco Gabella, Notarpietro, Riccardo, Silvano Bertoldo, Oscar Rorato, Giovanni Perona, Gabella, Marco, Bertoldo, Silvano, Rorato, Oscar   +16 more
core   +1 more source

Study of Ocean Waves Measured by Collocated HH and VV Polarized X-Band Marine Radars

International Journal of Antennas and Propagation, 2016
The significant wave height (SWH) retrieved from collocated HH and VV polarized X-band marine radars under different sea states is studied. The SWH are retrieved from different principal components of X-band marine radar image sequence.
Zhongbiao Chen, Yijun He, Wankang Yang
doaj   +1 more source

Marine Oil Spill Detection with X-Band Shipborne Radar Using GLCM, SVM and FCM

Remote Sensing, 2022
Marine oil spills have a significant adverse impact on the economy, ecology, and human health. Rapid and effective oil spill monitoring action is extraordinarily important for controlling marine pollution.
Bo Li, Jin Xu, Xinxiang Pan, Long Ma, Zhiqiang Zhao, Rong Chen, Qiao Liu, Haixia Wang   +7 more
doaj   +1 more source