|
|
|
|
|
Igor Paz, Bernard Willinger, Auguste Gires, Bianca Alves de Souza, Laurent Monier, Hervé Cardinal, Bruno Tisserand, Ioulia Tchiguirinskaia and Daniel Schertzer
Recent studies have highlighted the need for high resolution rainfall measurements for better modelling of urban and peri-urban catchment responses. In this work, we used a fully-distributed model called ?Multi-Hydro? to study small-scale rainfall variab...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shaoyan Zuo, Dazhi Wang, Xiao Wang, Liujia Suo, Shuaiwu Liu, Yongqing Zhao and Dewang Liu
In this study, a deep learning network for extracting spatial-temporal features is proposed to estimate significant wave height (????
H
s
) and wave period (????
T
s
) from X-band marine radar images. Since the shore-based radar image in this study is in...
ver más
|
|
|
|
|
|
|
|
|
|
|
Charlotte Wehner, Bradley Shirley, Garrett Mathesen, Julian Merrick, Brandon Weatherford and Emilio Alessandro Nanni
The manufacturing of active RF devices like klystrons is dominated by expensive and time-consuming cycles of machining and brazing. In this article, we characterize the RF properties of X-band klystron cavities and an integrated circuit manufactured with...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jiangkun Gong, Jun Yan, Huiping Hu, Deyong Kong and Deren Li
The detection of drones using radar presents challenges due to their small radar cross-section (RCS) values, slow velocities, and low altitudes. Traditional signal-to-noise ratio (SNR) detectors often fail to detect weak radar signals from small drones, ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Sungsik Wang, Hyunsoo Kim, Dongyoon Kim and Hosung Choo
This paper proposes a multi-band array antenna that shares a common aperture with heterogenous array elements. The multi-band array antenna includes one printed dipole antenna for the S-band and 3 × 3 array E-shaped patch antennas for the X-band. The cur...
ver más
|
|
|
|
|
|
|
|
|
|
|
Apollon Bournas and Evangelos Baltas
In weather radar applications, the Z-R relationship is considered one of the most crucial factors for providing quality quantitative precipitation estimates. However, the relationship?s parameters vary in time and space, making the derivation of an optim...
ver más
|
|
|
|
|
|
|
|
|
|
|
Bruno Spataro, Mostafa Behtouei, Fabio Cardelli, Martina Carillo, Valery Dolgashev, Luigi Faillace, Mauro Migliorati and Luigi Palumbo
|
|
|
|
|
|
|
|
|
|
|
Seok Kim, Chan-Mi Song, Seung-Hun Lee, Sung-Chan Song and Hyun-Ung Oh
The small synthetic aperture radar (SAR) technology experimental project (S-STEP) mission aims to develop an innovative spaceborne SAR microsatellite as a constellation of 32 microsatellites featuring a high-resolution stripmap mode of 1 m. The S-STEP is...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jeong-Geun Kim and Kang-Hee Lee
In this paper, a 4-bit digital step attenuator using 0.25 µm GaN HEMT technology for wideband radar systems is presented. A switched-path attenuator topology with resistive T-type attenuators and double-pole double-throw (DPDT) switches was used to achie...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jiangkun Gong, Deren Li, Jun Yan, Huiping Hu and Deyong Kong
Drone detection radar systems have been verified for supporting unmanned air traffic management (UTM). Here, we propose the concept of classify while scan (CWS) technology to improve the detection performance of drone detection radar systems and then to ...
ver más
|
|
|
|
|
|