Selection of key urban defense areas based on regional comprehensive risk assessment by WEI Hua, WANG Xiaoxia, YANG Fengbao, JIA Qi

“…Finally, the regional comprehensive risk assessment function is constructed according to the area of risk radar map, and the comprehensive risk of each region is quantitatively assessed according to the target situation of districts I to VI of a city. …”
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Realization of Low Cross-Polarization Level for GF-3 SAR Antenna by Jian Mi, Hongbing Sun, Guodong Song, Ying Xing, Xuhao Zhao

“…In the polarimetric synthetic aperture radar (PolSAR) system, crosstalk error is the key parameter for polarimetric imaging. …”
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Investigating In Situ Properties of Recycled Asphalt Pavement with Foamed Asphalt as Base Stabilizer by Christina Plati, Andreas Loizos, Vasilis Papavasiliou, Antonis Kaltsounis

“…For this purpose Nondestructive Testing (NDT) data collected using the Falling Weight Deflectometer (FWD) and Ground Penetrating Radar (GPR) along a foamed asphalt recycled pavement section was thoroughly analysed. …”
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Assessment of the Geomorphological Diversity of Komati Gorge, Mpumalanga Province, South Africa by Mukhodeni Mudau, Edmore Kori

“…This paper uses SRTM (Shuttle Radar Topographic Mission) data and GIS (Geographical Information System) techniques to assess the geomorphological diversity of Komati Gorge, in Mpumalanga Province of South Africa. …”
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Computational Simulation and Modeling of Freak Waves Based on Longuet-Higgins Model and Its Electromagnetic Scattering Calculation by Gengkun Wu, Chuanxi Liu, Yongquan Liang

“…Then, based on the Kirchhoff approximation method and the modified Two-Scale Method, the electromagnetic scattering model of the simulated freak waves is established, and the normalized radar cross section (NRCS) of the freak waves and their background sea surfaces is analyzed. …”
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A Global Thermospheric Density Prediction Framework Based on a Deep Evidential Method by Yiran Wang, Xiaoli Bai

“…Through the deep evidential method, we assimilate data from various sources including solar and geomagnetic conditions, accelerometer‐derived density data, and empirical models including the Jacchia‐Bowman model (JB‐2008) and the Naval Research Laboratory Mass Spectrometer and Incoherent Scatter Radar Extended (NRLMSISE‐00) model. The framework is investigated on five test cases along various satellites from 2003 to 2015 involving geomagnetic storms with Disturbance Storm Time (Dst) values smaller than −50 nT. …”
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Scattering and Doppler Spectral Analysis for a Fast-Moving Target above Time-Varying Lossy Dielectric Sea Surface by Ke Li, Lixin Guo, Juan Li

“…The monostatic normalized radar cross section of composite model by the hybrid PO-PO method is calculated and compared with those by the conventional method of moments, as well as the runtime and memory requirements. …”
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Towards a Severity Assessment Method for Potential Cyber Attacks to Connected and Autonomous Vehicles by Qiyi He, Xiaolin Meng, Rong Qu

“…It is found that remote control, fake vision on cameras, hidden objects to LiDAR and Radar, spoofing attack to GNSS, and fake identity in cloud authority are the most dangerous and of the highest vulnerabilities in CAV cyber security.…”
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Wideband Polarization Conversion Metasurface for RCS Reduction of Antennas by Tao Hong, Ke Peng, Yue Gu, Wen Jiang, Shuxi Gong

“…Polarization conversion metasurface (PCM) with wide operating band and high polarization conversion ratio is proposed for antenna radar cross-section (RCS) reduction. A 3rd-order quadrate fractal structure (QFS) is designed as the PCM element that the polarization conversion ratio is greater than 80% from 10.45 GHz to 32.15 GHz (relative bandwidth of 101.9%). …”
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Relative Navigation in LEO by Carrier-Phase Differential GPS with Intersatellite Ranging Augmentation by Alfredo Renga, Michele Grassi, Urbano Tancredi

“…In this paper, an augmented CDGPS navigation filter is proposed for the formation of two satellites characterized by a short, varying baseline, relevant to next generation Synthetic Aperture Radar missions. Specifically, a cascade-combination of dynamic and kinematic filters which processes double-differenced code and carrier measurements on two frequencies, as well as local inter-satellite ranging measurements, is used to get centimeter-level baseline estimates. …”
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Predicting GPR Signals from Concrete Structures Using Artificial Intelligence-Based Method by Wael Zatar, Tu T. Nguyen, Hai Nguyen

“…This paper presents the application of an Artificial Intelligence-based method in analyzing the effects of environmental conditions, chloride contamination in concrete, and surface corrosion of rebars on the amplitude of Ground Penetrating Radar (GPR) signals. Six reinforced concrete slabs with different chloride contamination mixtures were fabricated and tested. …”
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A Novel Rerouting Planning Model for the Terminal Arrival Routes under the Influence of Convective Weather by Ming Zhang, Xianglu Kong, Kai Liu, Xiangyu Li

“…Traditional air traffic rerouting approaches do not combine convective weather information using radar image recognition with controller workload, additional fuel consumption, delay loss, time cost, and route length at terminal airspace in tactical ATFM phase for exact rerouting decision. …”
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Multi-Objective Task Scheduling for Earth Observation InSAR Satellites via Non-Dominated Sorting Student Psychology Based Optimization Algorithm by Qingxian Jia, Weicheng Lian, Dan Yua, Qi Sun

“… This paper investigates the task scheduling problem for the Earth observation Interferometric Synthetic Aperture Radar (InSAR) satellite system. The mission time window generation method is introduced, and the constraint satisfaction model for task scheduling in the InSAR satellite system is constructed. …”
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The Effect of Antenna Place Codes for Reducing Sidelobes of SIAR and Frequency Diverse Array Sensors by Pourya Yaghoubi Aliabad, Hossein Soleimani, Mohammad Soleimani

“…Synthetic impulse and aperture radar (SIAR) is a technique that frequency diverse array (FDA) radars can imply in practice, thus overcoming some of their challenges. …”
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A Novel Waveform Design Method for Shift-Frequency Jamming Confirmation by Chang Zhou, Zhen-Bo Zhu, Zi-Yue Tang

“…Shift-frequency jamming is generally used to form range false targets for ground-based early-warning radar systems; the frequency shift value of such interference is larger than the Doppler shift value of the moving target, and the key element to suppress the shift-frequency jamming is the frequency shift value estimation. …”
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Rapid karstification process with evaporite-driven sinkholes in Southern Kohat Basin, NW Pakistan by Said Mukhtar Ahmad, Teng Wang, Saad Khan, Muhammad Waqar Azeem, Lv Fu

“…Here, we apply Interferometric Synthetic Aperture Radar (InSAR), resistivity profiles, and field observations to study the karstification process in this region. …”
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Three-Dimensional Storm Structure and Low-Level Boundaries at Different Stages of Cyclic Mesocyclone Evolution in a High-Precipitation Tornadic Supercell by Daniel P. Betten, Michael I. Biggerstaff, Conrad L. Ziegler

“…This is thought to be the first radar-based analysis where the relationship between the near-surface gust fronts and their parent downdrafts has been explored for sequential mesocyclones. …”
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Improved F-RRT∗ Algorithm for Flight-Path Optimization in Hazardous Weather by Xue Qiu, Yaohui Li, Rui Jin, Zhi Zhao, Jiajun Li, Donglin Lu, Linhui Ma

“…With the development of satellite navigation systems, the study of flight-path optimization under hazardous weather conditions has become especially important. In this study, radar data were used as the basis for the initial flight-restricted area under hazardous weather conditions, and the Graham algorithm was used to delineate the dynamic flight-restricted area by comprehensively considering the hazardous weather boundary changes along with the speed and direction. …”
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Investigation of Range Profiles from a Simplified Ship on Rough Sea Surface and Its Multipath Imaging Mechanisms by Siyuan He, Fan Zhang, Weidong Hu, Lei Zhuang, Xingbin Ye, Guoqiang Zhu

“…Finally, the influence of different sea states on the radar target signatures has been examined and discussed.…”
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Dual-Polarized Planar Phased Array Analysis for Meteorological Applications by Chen Pang, Peter Hoogeboom, François Le Chevalier, Herman W. J. Russchenberg, Jian Dong, Tao Wang, Xuesong Wang

“…This paper presents a theoretical analysis for the accuracy requirements of the planar polarimetric phased array radar (PPPAR) in meteorological applications. Among many factors that contribute to the polarimetric biases, four factors are considered and analyzed in this study, namely, the polarization distortion due to the intrinsic limitation of a dual-polarized antenna element, the antenna pattern measurement error, the entire array patterns, and the imperfect horizontal and vertical channels. …”
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