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621
Preliminary report on the excavations of the legionary bath of Brigetio in 2024
Published 2025-01-01“…The excavations here shed a light on the size of the bath, which extended westward over a much larger area than previous excavations and radar surveys had suggested. In connection with the heating systems of the baths, two praefurnia preserved in excellent condition, along with their two adjoining service rooms, were also unearthed. …”
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622
A multi-frequency altimetry snow depth product over Arctic sea ice
Published 2025-01-01“…This comparison indicates correlations all above 0.37 and reaching 0.91 relative to airborne snow radar. We estimate the snow depth uncertainties of our product to be 0.06 m on average. …”
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623
A Generalized Oblique Projection Filter with Flexible Parameter for Interference Suppression
Published 2015-01-01“…Further, an application of GOP filter in ionospheric clutter cancellation in a high frequency surface wave radar (HFSWR) system is given. The ISC is designed specifically to introduce an extra coherent loss to the clutters and a satisfying clutter suppression result is achieved. …”
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624
Determining Physical Characteristics of Watersheds in Artvin Province Using SRTM and Topographic Map Data
Published 2016-09-01“…In order to create Digital Elevation Model (DEM), data from both “Shuttle Radar Topography Mission (SRTM)” and “topographical map” was used; thus, providing comparison of the results gathered from these two base maps. …”
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625
Time-Frequency Analysis and Target Recognition of HRRP Based on CN-LSGAN, STFT, and CNN
Published 2021-01-01“…Aiming at the problem of radar target recognition of High-Resolution Range Profile (HRRP) under low signal-to-noise ratio conditions, a recognition method based on the Constrained Naive Least-Squares Generative Adversarial Network (CN-LSGAN), Short-time Fourier Transform (STFT), and Convolutional Neural Network (CNN) is proposed. …”
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626
Software-Defined Radio FPGA Cores: Building towards a Domain-Specific Language
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627
Ship Velocity Estimation in Airborne Along-Track Interferometric SAR Imagery Based on the Fractional Fourier Transform
Published 2020-01-01“…Synthetic aperture radar (SAR) was originally exploited to image stationary scenes. …”
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628
Multiobjective Synthesis of Steerable UWB Circular Antenna Array considering Energy Patterns
Published 2015-01-01“…True-time delay antenna arrays have gained a prominent attention in ultrawideband (UWB) applications such as directional communications and radar. This paper presents the design of steerable UWB circular array by using a multiobjective time-domain synthesis of energy pattern for circular antenna arrays. …”
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629
Low-RCS, Circular Polarization, and High-Gain Broadband Antenna Based on Mirror Polarization Conversion Metasurfaces
Published 2019-01-01“…It achieves circular polarization (CP) and effectively reduces the radar cross section (RCS) and increases gain in the entire x-band. …”
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630
Traffic State Recognition of Intersection Based on Image Model and PCA Hashing
Published 2020-01-01“…At present, more and more advanced traffic detection technology provides reliable and accurate data for measuring and distinguishing the state of urban road traffic, such as the cooperative vehicle-infrastructure system, wide-area radar technology, and 5G technology. This study proposes a novel method called HTSI (High Precision Traffic State Identification Method), which is based on the advanced detection technology in traffic state recognition at the intersection: The raw data used for intersection traffic state recognition is high-precision detection data of tracking characteristics, which make the data look like a picture of the intersection at God’s perspective. …”
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631
Change-Oriented Risk Management in Civil Aviation Operation: A Case Study in China Air Navigation Service Provider
Published 2020-01-01“…Then, taking an air navigation service provider (ANSP) in Northwest China as an example, a case study of system changes from nonradar control operations to radar control operations is analyzed. The effectiveness and applicability of the SCOHI model are tested with a risk assessment. …”
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632
On the Unambiguous Distance of Multicarrier Phase Ranging With Random Hopped Frequencies
Published 2017-01-01“…Multicarrier phase ranging (MCPR) technique has been widely used in radio navigation, telemetry, radar, and many other fields. In an MCPR system, unique range estimation can be obtained within only the so-called unambiguous distance (UD) because of phase ambiguity. …”
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633
Comparison of Thunderstorm Simulations from WRF-NMM and WRF-ARW Models over East Indian Region
Published 2012-01-01“…Comparison of model-simulated radar reflectivity imageries with observations revealed that NMM model has simulated well the propagation of the squall line, while the squall line movement was slow in ARW. …”
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634
All-dielectric carpet cloaks with three-dimensional anisotropy control
Published 2023-06-01“…The measured near-field distributions and bistatic radar cross sections are in good agreement with simulated predictions and the validity of the design method is confirmed.…”
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635
Assessment of scientific and technical projects of priority directions of development based on the criterion of use value
Published 2018-06-01“…A polyciritorial evaluation of the final result of the project and use of the aggregate product as a resultant estimator of the use-value criterion makes it possible to objectify complex procedures for competitive selection of large-scale projects, increase their economic performance, as confirmed by the approbation studies on the example of the project for the creation and production of multifunctional on-board radar equipment.…”
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636
Optimized Airborne Millimeter-Wave InSAR for Complex Mountain Terrain Mapping
Published 2025-01-01“…Focusing on the key factors in airborne InSAR data acquisition, this study explores advanced route planning and ground control measurement techniques. Leveraging radar observation geometry and global SRTM DEM data, we simulate layover and shadow effects to formulate an optimal flight path design. …”
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637
SVDDD: SAR Vehicle Target Detection Dataset Augmentation Based on Diffusion Model
Published 2025-01-01“…In the field of target detection using synthetic aperture radar (SAR) images, deep learning-based supervised learning methods have demonstrated outstanding performance. …”
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638
Realization of Arithmetic Logic Units Using Electro-Optic Microring Resonators in Photonic Circuits
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639
Using Open-Source Components to Process Interferometric TerraSAR-X Spotlight Data
Published 2013-01-01“…We show how to process bistatic TanDEM-X images and propose an integrated processing option for monostatic TerraSAR-X data in the Delft Object-oriented Radar Interferometric Software (DORIS). The paper focuses on the implementation of this algorithm for high-resolution spotlight InSAR in a public domain tool; hence, it becomes available to a larger research community. …”
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640
Vertical Raindrop Size Distribution in Central Spain: A Case Study
Published 2015-01-01“…Three different devices were used to characterize the precipitation: a disdrometer, a rain gauge, and a Micro Rain Radar (MRR). These instruments determine precipitation intensity indirectly, based on measuring different parameters in different sampling points in the atmosphere. …”
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