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Transmit Power-Efficient Beamforming Design for Integrated Sensing and Backscatter Communication
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Research on Wavelength-Shifting Fiber Scintillator for Detecting Low-Intensity X-Ray Backscattered Photons
Published 2025-06-01“…The influences of ray source energy, detection area, number of WSFs, and coupling mechanism on detection efficiency were simulated. …”
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Enhanced breast tumor localization with DRA antenna backscattering and GPR algorithm in microwave imaging
Published 2024-12-01“…Microwave imaging technology has higher accuracy of detection in the variation of tissue properties. In this article, a dielectric resonator based wide band antenna is designed and investigated for microwave imaging (MWI) of early breast cancer detection due to its improved accuracy. …”
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Intra-Symbol Differential Amplitude Shift Keying-Aided Blind Detector for Ambient Backscatter Communication Systems
Published 2025-01-01“…By leveraging the intra-symbol differential amplitude shift keying (IDASK) scheme, this detector effectively redirects the majority of the DLI energy towards the largest eigenvalue of the received sample covariance matrix, thereby utilizing the second largest eigenvalue for efficient symbol detection. In addition, this paper conducts theoretical performance analyses of the proposed detector in terms of the false alarm probability, missed detection probability, and the bit-error rate (BER) lower bound. …”
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An appraisal of backscatter removal and refraction calibration models for improving the performance of vision-based mapping and navigation in shallow underwater environments
Published 2025-03-01“…Furthermore, additional visual-inertial datasets quantify the overall performance, especially in retrieving metric positioning information. The research shows efficient backscatter removal improves feature detection robustness, especially in murky water conditions. …”
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Passive-Compensation-Based Stable RF Phase Dissemination for Multiaccess Trunk Fiber Link With Anti-GVD and Anti-Backscattering Function
Published 2017-01-01“…Signals with different radio frequencies at the same wavelength are employed in the forward and backward transmissions to efficiently suppress the effect of the GVD and Rayleigh backscattering at the same time. …”
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A Quarter Ellipsoidal Reflector Enhancing Fluorescence Collection Efficiency For Multiphoton Microscopes
Published 2016-01-01“…The method is also validated by imaging turbid phantoms and <italic>ex vivo</italic> biological tissue. Quantum efficiency (QE) corrected experimental results obtained by our method are comparable with those obtained by a nondescanned detection (NDD) scheme of a commercially available multiphoton microscope system. …”
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Evaluation of Scintillation Counter Detector Using Gamma Radiation for Gold Detection
Published 2024-12-01“…This technique can detect the backscattered gamma radiation emitted from the samples. …”
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A Comparative Crash-Test of Manual and Semi-Automated Methods for Detecting Complex Submarine Morphologies
Published 2024-11-01“…A large number of (more than 7000) small but prominent reefs were detected, which made manual mapping extremely time-consuming. …”
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EXPERIMENTAL TRIAL OF USING THE SCIENTIFIC MULTIBEAM ECHOSOUNDER DESIGNED TO DETECT FISH IN A WILD FIELD OF VIEW
Published 2017-01-01“…Full-scale tests of the multibeam echosounder performed in the Caspian Sea well proved that it can be used for detecting fish in a wide field of view. But to increase the echosounder efficiency in this operation mode, it is necessary to continue improving the data processing algorithms with regards to hydrodynamic noise filtering and to reposition the echosounder underwater unit mounting it at the vessel’s bottom or submerged keel.…”
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The Optimal Choice of Semiconductor Converter to Increase Power and Efficiency in Betavoltaic Batteries with 3H, 63Ni, and 147Pm Beta Sources
Published 2024-09-01“…Semiconductor materials play an important role as transmitters of electrical energy in betavoltaic batteries. Optimal selection will increase the efficiency of these batteries. …”
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Scalable Detection of Underground Water Leaks in Dense Urban Environments Using L-Band SAR and Machine Learning
Published 2025-07-01“…Underground water leaks in urban networks result in significant resource loss, infrastructure degradation, and environmental damage—challenges that are particularly acute in high-density cities like Hong Kong, where aging and complex infrastructure complicates detection. Traditional methods such as acoustic sensing and manual inspections often fall short in efficiency and scalability. …”
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Oil Spill Detection in PolSAR Imagery Using Composite Scattering Power Entropy and Multiscale Hybrid Feature Fusion Network
Published 2025-01-01“…Polarimetric synthetic aperture radar (SAR) is effective in detecting oil spills by distinguishing backscatter differences between seawater and oil slicks. …”
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Detection of Inverted Channels Using Sentinel-1 Data and Sentinel-2 Data on Google Earth Engine: A Comparative Analysis
Published 2025-01-01“…The proposed workflow provides an efficient method for detecting inverted channel, offering a valuable tool for geomorphological research, landscape evolution studies, and hydrological exploration in arid environments.…”
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Design and Evaluation of a Cloud Computing System for Real-Time Measurements in Polarization-Independent Long-Range DAS Based on Coherent Detection
Published 2024-12-01“…We employ the CloudSim tool to design and evaluate a cloud computing scheme for long-range, polarization-independent DAS using coherent detection of Rayleigh backscattering signals and uncover valuable insights on the evolution of the processing times for a diverse range of Virtual Machine (VM) capacities as well as sizes of blocks of processed data. …”
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A Fine Agricultural Flood Segmentation Model for HJ-2E S-Band SAR Data
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Sample-Adjusted Threshold Calculation (SATC) for Optimizing Flood Mapping From a Trustworthy and Explainable Perspective
Published 2025-01-01“…However, in cross-regional flood monitoring, challenges in accurately detecting floodwater pixels arise from interference factors affecting SAR backscatter, which are inherently present in various geo-environments (e.g., wind waves, vegetation, thick clouds, and high-relief terrain). …”
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Enhanced U-Net for Underwater Laser Range-Gated Image Restoration: Boosting Underwater Target Recognition
Published 2025-04-01“…To address these issues, Underwater Laser Range-Gated Imaging has emerged as a promising solution. By selectively capturing photons within a controlled temporal gate, this technique effectively suppresses backscattering noise-enhancing image clarity, contrast, and detection range. …”
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EVALUATION OF THE OBJECTIVES POLARIZATION DISCRIMINATION AGAINST PASSIVE HINDRANCES WITH THE DEVICE, BASED ON CONSIDERATION OF THE SPATIAL VARIATION OF THE FARADAY ROTATION ANGLE I...
Published 2018-08-01“…In order to determine the operability of the device under various conditions and to evaluate its efficiency, the signal-to-noise ratio at the output of the device is calculated in the case where the backscattering matrix of the target and the matrix of the interference element (for example, dipole, angle reflector, etc.) are not diagonal, m .e. when a cross-polarization component appears when the signal from the target or from the interference element is reflected.…”
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