Results 51 to 60 of about 120,318 (255)
SAR Waveform Diversity Using PN-Sequence and Its Optimization With Genetic Algorithm
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingWaveform diversity is an important technique to suppress range ambiguities and extend the observation coverage of synthetic aperture radar (SAR) without sacrificing spatial resolution and power consumption.
Raito Suzuki, Akira Hirose, Ryo Natsuaki
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CS–MMPF-based weak target detection and tracking with range ambiguity
The Journal of Engineering, 2019 To address the problem of target detection and tracking with the range ambiguous radar in low signal-to-noise ratio environment, a novel weak target detection and tracking algorithm based on the compressed sensing (CS) and multiple model particle filter (
Shuncheng Tan +3 more
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The local kinetic energy density revisited
New Journal of Physics, 2020 Kinetic energy density (KED) plays a fundamental role in density functional theory, chemical bonding, etc. As a basic quantity, its definition is ambiguous, which will inevitably exert unpredictable adverse effects on application.
Hao Jiang
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FEBS Open Bio, EarlyView.A rapid visual test combines DNA amplification, CRISPR–based target verification, and a lateral flow strip to detect Streptococcus suis. The assay gives results in about 45 min, reduces false‐positive interpretation, and does not require fluorescence equipment.
Liu‐xin Li +7 more
wiley +1 more source
Reduced-Dimension FDA-STAP for Range-Ambiguous Clutter Rejection Under Limited Snapshots
EngSpace-time adaptive processing (STAP) has been widely recognized as an effective technique for suppressing clutter in airborne radar systems. Nevertheless, range ambiguity can seriously affect the clutter rejection capability of conventional STAP methods.
Di Song +3 more
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Range Ambiguity Suppression Approach for Quad-pol SAR Systems Based on Modified Azimuth Phase Coding
Leida xuebao, 2017 For conventional quadrature-polarimetric (quad-pol) Synthetic Aperture Radar (SAR) systems, as cross-polarized (cross-pol) channels are influenced by the strong co-polarized (co-pol) range ambiguous returns, the range ambiguity levels of cross ...
Zhu Xiaojing +4 more
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New Directions for Adult and Continuing Education, EarlyView.ABSTRACT Advancing artificial intelligence (AI) has transformed learning and work, yet higher education and professional development programs have not systematically equipped learners for AI‐prevalent environments. This lack of preparation creates uncertainty regarding control, responsibility, trust, and accountability.
Moon‐Heum Cho, Jerusalem Merkebu
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Leida xuebaoSpace-Time Adaptive Processing (STAP) is a key technique used for ground/sea clutter suppression and moving target detection in airborne radar. However, under range ambiguity conditions, the inherent clutter nonstationarity in airborne bistatic radar ...
Hangui ZHU +5 more
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Ethical Foreground and Background in Adult Educator Work
New Directions for Adult and Continuing Education, EarlyView.ABSTRACT Adult educators work in a complex ethical environment. The very act of contributing to the learning of another is fraught with moral overtones. In this paper we consider the ethical dimensions of adult educator practice by distinguishing the ethical features of the context or ‘background’ of practice from the ethical capabilities and decision ...
Steven Hodge, Sonal Nakar
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Polarimetric Space–Time Adaptive Processing in Airborne FDA Radar
EngPolarimetric space–time adaptive processing (PSTAP) introduces polarization domain information alongside the space–time domain. By exploiting the differences in polarimetric scattering characteristics between targets and clutter, PSTAP significantly ...
Linxi Lei +5 more
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