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Jiangkun Gong, Jun Yan, Deren Li and Deyong Kong
Not any radar dwell time of a drone radar is suitable for detecting micro-Doppler (or jet engine modulation, JEM) produced by the rotating blades in radar signals of drones. Theoretically, any X-band drone radar system should detect micro-Doppler of blad...
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Stanislav Aleksandrovich Ermakov, Irina Andreevna Sergievskaya, Leonid Mikhailovich Plotnikov, Ivan Aleksandrovich Kapustin, Olga Arkadyevna Danilicheva, Alexander Viktorovich Kupaev and Alexander Andreevich Molkov
Suppression of radar backscattering from the sea surface has been studied in field experiments with surfactant films carried out from an Oceanographic Platform on the Black Sea and from onboard a research vessel on the Gorky Water Reservoir using an X-C-...
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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, ...
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Mauro Leonardi, Gianluca Ligresti and Emilio Piracci
The classification of targets by the use of radars has received great interest in recent years, in particular in defence and military applications, in which the development of sensor systems that are able to identify and classify threatening targets is a...
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Ram M. Narayanan, Michael J. Harner, John R. Jendzurski and Nicholas G. Paulter
Through-wall and through-barrier motion-sensing systems are becoming increasingly important tools to locate humans concealed behind barriers and under rubble. The sensing performance of these systems is best determined with appropriately designed calibra...
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Anas Mahmoud Almanofi,Adnan Malki,Ali Kazem
Pág. 279 - 284
In this paper, we estimate Doppler frequency of a maneuvering target being tracked by passive radar using two types of particle filter, the first is ?Maximum Likelihood Particle Filter? (MLPF) and the second is ?Minimum Variance Particle filter? (MVPF). ...
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Ferdinando Reale, Eugenio Pugliese Carratelli, Angela Di Leo and Fabio Dentale
The orbital velocity of sea wave particles affects the value of sea surface parameters as measured by radar Doppler altimeters (also known as delay Doppler altimeter (DDA)). In DDA systems, the along-track resolution is attained by algorithms that take i...
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Rachael L. Hardman and Lucy R. Wyatt
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Quanhui Wang and Ying Sun
In order to reduce power consumption and save storage capacity, we propose a high-resolution sub-Nyquist radar approach based on matrix completion (MC), termed as single-channel sub-Nyquist-MC radars. While providing the high-resolution joint angle-Doppl...
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Vinh Phuc Tran, Adel Ali Al-Jumaily and Syed Mohammed Shamsul Islam
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Vinh Phuc Tran, Adel Ali Al-Jumaily and Syed Mohammed Shamsul Islam
Today?s rapid growth of elderly populations and aging problems coupled with the prevalence of obstructive sleep apnea (OSA) and other health related issues have affected many aspects of society. This has led to high demands for a more robust healthcare m...
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Vinh Phuc Tran, Adel Ali Al-Jumaily and Syed Mohammed Shamsul Islam
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Xuehua Li, Chuanzhi Wang, Zhengxia Qin, Jianxin He, Fang Liu and Qing Sun
Velocity ambiguity is one of the main challenges in accurately measuring velocity for the future Geostationary Spaceborne Doppler Weather Radar (GSDWR) due to its short wavelength. The aim of this work was to provide a novel velocity dealiasing method fo...
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Jingbei Sun, Huimin Li, Wenming Lin and Yijun He
Spaceborne synthetic aperture radar (SAR) has been proven to be a useful technique for observing the sea surface wind and current over the open ocean given its all-weather data-gathering capability and high spatial resolution. In addition to the commonly...
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Jiangkun Gong, Deren Li, Jun Yan, Huiping Hu and Deyong Kong
Current studies rarely mention radar detection of hybrid vertical take-off and landing (VTOL) fixed-wing drones. We investigated radar signals of an industry-tier VTOL fixed-wing drone, TX25A, compared with the radar detection results of a quad-rotor dro...
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Virginia Zamparelli, Francesca De Santi, Andrea Cucco, Stefano Zecchetto, Giacomo De Carolis and Gianfranco Fornaro
Several studies have shown the capabilities of Synthetic Aperture Radar to map sea currents in ocean regions mainly characterized by large flows. We consider the well known method based on the analysis of the Doppler Centroid. The Doppler, as, in general...
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Zhigang Chu,Di Wu,Hanfeng Hu,Dan Xu,Aijun Chen
Pág. 1 - 13
Noise, especially continuous noise, is an important factor that affects the velocity dealiasing of Doppler weather radars. A challenge in the design of dealiasing algorithm is how to effectively suppress noise. Therefore, a novel anti-noise dealiasing al...
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Bo Zang, Mingzhe Zhu, Xianda Zhou, Lu Zhong and Zijiao Tian
Under the same principle, laser radar could be more sensitive to the micro-Doppler (m-D) effect due to its wave length, as the characteristic of multi-resolution, S transform could reduce the influence of the micro-Doppler component and enhance the imagi...
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Daniel Victor Carbunaru,Roxana Monica Sasu,Sorin Ionut Burcea,Aurora Bell
The Romanian National Meteorological Administration (NMA) radar network consists of five S-band and four C-band radars. Observation of convection in Romania through the Doppler radar network offered a new perspective in understanding the climatologic ris...
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Davi V. Q. Rodrigues, Delong Zuo and Changzhi Li
Researchers have made substantial efforts to improve the measurement of structural reciprocal motion using radars in the last years. However, the signal-to-noise ratio of the radar?s received signal still plays an important role for long-term monitoring ...
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