Results 281 to 290 of about 136,412 (330)
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Real-Time Processing of Spaceborne SAR Data With Nonlinear Trajectory Based on Variable PRF
IEEE Transactions on Geoscience and Remote Sensing, 2022Spaceborne synthetic aperture radar (SAR) real-time imaging is especially important for disaster emergencies and real-time monitoring applications with highly desired real-time requirements.
Jianlai Chen +5 more
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Joint Frequency and PRF Agility Waveform Optimization for High-Resolution ISAR Imaging
IEEE Transactions on Geoscience and Remote Sensing, 2022Traditional radar waveforms are easily intercepted and interfered with by enemy’s reconnaissance system with the time–frequency periodic pattern recognition.
Shaopeng Wei, Lei Zhang, Hongwei Liu
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An Efficient Track-Before-Detect for Multi-PRF Radars With Range and Doppler Ambiguities
IEEE Transactions on Aerospace and Electronic Systems, 2022This article considers the detection and tracking of weak targets in multiple pulse repetition frequency (multi-PRF) radars using the track-before-detect (TBD) technique.
Wujun Li, Wei Yi, L. Kong, K. C. Teh
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Novel PRF schedules for medium PRF radar
2003 Proceedings of the International Conference on Radar (IEEE Cat. No.03EX695), 2004Previous work has demonstrated that evolutionary algorithms (EAs) are an effective tool for the selection of optimal pulse repetition frequency (PRF) sets to minimise range-Doppler blindness of a medium PRF radar. This paper reconsiders the concepts of decodability in medium PRF radar, and how new and novel schedules can be generated using an EA ...
E.J. Hughes, C.M. Alabaster
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Medium PRF radar PRF optimisation using evolutionary algorithms
Proceedings of the 2003 IEEE Radar Conference (Cat. No. 03CH37474), 2004In this paper we employ evolutionary algorithms for the selection of optimal pulse repetition frequency (PRF) sets to minimise range-Doppler blindness in a model of a medium PRF radar. Both eight and nine PRF schedules are considered and the algorithm ensures that all the solutions produced are fully decodable and have no blind velocities.
E.J. Hughes, C.M. Alabaster
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Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval, 2010
In this paper, we present a novel approach to Pseudo-Relevance Feedback (PRF) called Multilingual PRF (MultiPRF). The key idea is to harness multilinguality. Given a query in a language, we take the help of another language to ameliorate the well known problems of PRF, viz.
Manoj K. Chinnakotla +2 more
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In this paper, we present a novel approach to Pseudo-Relevance Feedback (PRF) called Multilingual PRF (MultiPRF). The key idea is to harness multilinguality. Given a query in a language, we take the help of another language to ameliorate the well known problems of PRF, viz.
Manoj K. Chinnakotla +2 more
openaire +1 more source
Platelets, 2020
Platelet-rich fibrin (PRF) has been proposed as an autologous membrane with the advantages of host accumulation of platelets and leukocytes with entrapment of growth factors.
M. Fujioka-Kobayashi +5 more
semanticscholar +1 more source
Platelet-rich fibrin (PRF) has been proposed as an autologous membrane with the advantages of host accumulation of platelets and leukocytes with entrapment of growth factors.
M. Fujioka-Kobayashi +5 more
semanticscholar +1 more source
Medium PRF radar PRF selection using evolutionary algorithms
IEEE Transactions on Aerospace and Electronic Systems, 2003Evolutionary algorithms are applied to the optimization of pulse repetition frequency (PRF), for both eight-and nine PRFs, in medium PRF radar while considering the detailed effects of sidelobe clutter and many other technical factors. The algorithm presented also ensures that all the solutions produced are fully decodable and have no blind velocities.
C.M. Alabaster +2 more
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Performance comparison of PRF schedules for medium PRF radar
IEEE Transactions on Aerospace and Electronic Systems, 2006Previous work has shown how evolutionary algorithms (EAs) are an effective tool in optimising the selection of pulse repetition frequency (PRF) values of medium PRF schedules in an airborne fire control radar (FCR) application requiring target data in three PRFs.
D. Wiley +3 more
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Instructions for the use of L‐PRF in different clinical indications
PeriodontologyAutologous platelet concentrates (APCs) have demonstrated clear benefits across various clinical applications, including alveolar ridge preservation, guided tissue regeneration, guided bone regeneration, sinus floor elevation (both lateral window ...
M. Quirynen +6 more
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