Results 21 to 30 of about 67,451 (128)
The P-band spaceborne synthetic aperture radar (SAR) is significantly affected by ionospheric scintillation. Although the traditional phase gradient autofocus (PGA) can estimate and compensate for the scintillation phase of the single-polarization SAR ...
Hongcheng Zeng +3 more
doaj +1 more source
A great interest has been directed towards high frequency surface wave radar (HFSWR), because it is applied as long‐range early warning and real‐time measurements of sea surface condition tools in maritime surveillance.
Xiaowei Ji +3 more
doaj +1 more source
A Comparative Study on Radio Frequency Interference Suppression and foF2 Scaling for Ionograms
In this paper, we compare the performances of radio frequency interference (RFI) suppression between radio frequency interference mitigation (RFIM) and frequency-domain adaptive clutter suppression (FACS) algorithms that apply to ionograms for foF2 ...
Zhao-Yu Chen +6 more
doaj +1 more source
CLUSIM: A Synthetic Aperture Radar Clutter Simulator for Planetary Exploration [PDF]
In this paper we present the CLUtter SIMulator (CLUSIM), a special program simulating radar side echoes from rough planetary surfaces using realistic topography data sets.
B. Sánchez-Cano (7665515) +3 more
core +4 more sources
the plot, the clutter, the sampling and its lens: occlusion measures for automatic clutter reduction [PDF]
Previous work has demonstrated the use of random sampling in visualising large data sets and the practicality of a sampling lens in enabling focus+context viewing.
Dix, Alan, Ellis, G.
core +3 more sources
Small‐array high‐frequency surface wave radar (HFSWR) is widely used to monitor maritime targets as it can be used to save on‐land resources. In small‐array HFSWR systems, the main lobe of the receiving angle spectrum is significantly broadened.
Jiaming Li, Qiang Yang, Xin Zhang
doaj +1 more source
Quality Control for Ocean Current Measurement Using High-Frequency Direction-Finding Radar
High-frequency radars (HFRs) are important for remote sensing of the marine environment due to their ability to provide real-time, wide-coverage, and high-resolution measurements of the ocean surface current, wave height, and wind speed.
Shuqin He +6 more
doaj +1 more source
Fast comparison of IS radar code sequences for lag profile inversion [PDF]
A fast method for theoretically comparing the posteriori variances produced by different phase code sequences in incoherent scatter radar (ISR) experiments is introduced.
M. S. Lehtinen +2 more
doaj +1 more source
Modeling and Simulation Challenges in Wide Ocean Area Surveillance
Wide ocean area surveillance using high frequency surface wave radar(s) is discussed in this paper. Theoretical and practical issues and problems are reviewed.
Levent Sevgi
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An Orthogonal Projection Algorithm to Suppress Interference in High-Frequency Surface Wave Radar
High-frequency surface wave radar (HFSWR) has been widely applied in sea-state monitoring, and its performance is known to suffer from various unwanted interferences and clutters.
Zezong Chen, Fei Xie, Chen Zhao, Chao He
doaj +1 more source

