Results 31 to 40 of about 2,458,810 (174)

Synthetic aperture radar for all weather penetrating UAV application (SARape) - project presentation

, 2022
S.290-293The capability to image scenes from unmanned aerial vehicles (UAVs) even through bad weather conditions or dust clouds is an important requirement for state-of-the-art synthetic aperture radar (SAR).
Leuther, Arnulf, Georgiou, George E., Caris, Michael, Essen, Helmut, Stanko, Stephan, Malanowski, Mateusz, Tessmann, Axel, Papanastasiou, Andreas C., Kulpa, Krzysztof, Samczynski, Piotr, Guraly, Roland, Bilacz, Zoltan, Topping, Christopher, Meszoly, Gyorgy, Weber, Rainer   +14 more
core   +1 more source

Smart Multi-Aperture Radar Techniques for Spaceborne Remote Sensing [PDF]

, 2008
Data compression is crucial for modern synthetic aperture radar systems where high resolution or large coverage may result in huge amounts of raw data.
Bordoni, Federica, Federica Bordoni, Nicolas Gebert, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard, Marwan Younis, Gerhard Krieger   +7 more
core   +1 more source

A bistatic inverse synthetic aperture radar sparse aperture high‐resolution imaging algorithm with migration compensation

IET Radar, Sonar & Navigation, 2022
In recent years, bistatic inverse synthetic aperture radar (Bi‐ISAR) imaging of targets with sparse aperture has attracted more and more attention. One of the critical issues is that the Bi‐ISAR imaging of some large targets with rotational motions is ...
Hanshen Zhu, Wenhua Hu, Baofeng Guo, Xiaoxiu Zhu, Bin Zhou, Dongfang Xue, Chang'an Zhu   +6 more
doaj   +1 more source

Compressed sensing of monostatic and multistatic SAR [PDF]

, 2013
In this letter, we study the impact of compressed data collections from a synthetic aperture radar (SAR) sensor on the reconstruction quality of a scene of interest.
Çetin, Müjdat, W. Clem Karlb, Mujdat Cetinc, Stojanovic, Ivana, Karl, W. Clem, Ivana Stojanovica   +5 more
core   +1 more source

Review of High-resolution Imaging Techniques of Wideband Inverse Synthetic Aperture Radar

Leida xuebao, 2020
At present, the emphasis of Inverse Synthetic Aperture Radar (ISAR) systems on the characteristics of high carrier frequency, wide bandwidth, multi-polarization capability, distribution, and networking has led to the development and progress of ISAR ...
Biao TIAN, Yang LIU, Pengjiang HU, Wenzhen WU, Shiyou XU, Zengping CHEN   +5 more
doaj   +1 more source

Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar [PDF]

, 2008
In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High- Resolution Wide-Swath (HRWS) SAR concept.
Junghyo Kim, Younis, Marwan, Wiesbeck, Werner, Werner Wiesbeck, Kim, Junghyo, Marwan Younis   +5 more
core   +1 more source

Micro-Doppler Signal Time-Frequency Algorithm Based on STFRFT

Sensors, 2016
This paper proposes a time-frequency algorithm based on short-time fractional order Fourier transformation (STFRFT) for identification of a complicated movement targets. This algorithm, consisting of a STFRFT order-changing and quick selection method, is
Cunsuo Pang, Yan Han, Huiling Hou, Shengheng Liu, Nan Zhang   +4 more
doaj   +1 more source

Metasurface‐Based Multidimensional Light‐Field Manipulation: From Technologies to Applications

Advanced Science, EarlyView.
Multidimensional metasurfaces enable versatile manipulation of multiple optical degrees of freedom, including phase, amplitude, polarization, wavelength, and orbital angular momentum. This review summarizes their fundamental mechanisms, emerging strategies for multidimensional light‐field control, and key applications in optical computing, imaging ...
Heliang Yin, Shuo Sun, Jiahao Zhang, Jianuo Hu, Yubin Qiao, Liang Chen, Jin Li   +6 more
wiley   +1 more source

Interferometric baseline performance estimations for multistatic synthetic aperture radar configurations derived from GRACE GPS observations [PDF]

, 2006
Recent studies have demonstrated the usefulness of global positioning system (GPS) receivers for relative positioning of formation-flying satellites using dual-frequency carrier-phase observations. The accurate determination of distances or baselines
D'Amico, Simone, Kohlhase, A. O., Kroes, R.   +2 more
core   +1 more source

Precise motion compensation method in terahertz ISAR imaging based on sharpness maximization

Electronics Letters, 2022
According to the characteristics of the manoeuvring targets and the superiorities of Terahertz Inverse Synthetic Aperture Radar (THz‐ISAR), a precise motion compensation method based on image sharpness maximization for manoeuvring targets in the ...
Hetong Wang, Qi Yang, Hongqiang Wang, Bin Deng   +3 more
doaj   +1 more source