Results 91 to 100 of about 56,958 (289)
Analysis of normalized radar cross section (sigma-O) signature of Amazon rain forest using SEASAT scatterometer data [PDF]
The normalized radar cross section (NRCS) signature of the Amazon rain forest was SEASAT scatterometer data. Statistics of the measured (NRCS) values were determined from multiple orbit passes for three local time periods.
Bracalente, E. M., Sweet, J. L.
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Advanced Science, EarlyView.Co─Ce dual atomic configuration anchored on the surface of NC matrix has been constructed to regulate the local electron structure. The higher occupied states induced by the Co 3d‐Ce 4f orbital hybridization facilitate the formation of polarized electric fields, which in turn strengthens the polarization relaxation and partially repairs the effective ...
Da Li +8 more
wiley +1 more source
Doppler Spectrum-Based NRCS Estimation Method for Low-Scattering Areas in Ocean SAR Images
Remote Sensing, 2017 The image intensities of low-backscattering areas in synthetic aperture radar (SAR) images are often seriously contaminated by the system noise floor and azimuthal ambiguity signal from adjacent high-backscattering areas.
Hui Meng +4 more
doaj +1 more source
SiGe process integrated on-chip dipole antenna on finite size ground plane [PDF]
, 2013 This letter investigates the effect of a finite-size ground plane on the radiation pattern and reflection coefficient of a SiGe process integrated on-chip antenna.
Goettel, Benjamin +3 more
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High‐Performance Recycling Biobased Photopolymers for 3D Printing
Advanced Science, EarlyView.By using biobased phenols like eugenol, novel biobased photopolymers containing dissociative phenol‐carbamate bonds are designed for 3D printing. Meanwhile, a “mixed‐monomer assisted recycling” strategy is proposed to recycle the materials. The resulting materials not only achieve high‐performance and excellent chemical recyclability simultaneously ...
Hang Zhou +12 more
wiley +1 more source
Flexible IMU Sensor Array For 3D Colonoscope Shape Reconstruction and AI‐Based Loop Detection
Advanced Science, EarlyView.We propose a sensing platform for 3D visualization of the colonoscope combined with artificial intelligence (AI)‐based loop detection. The system consists of an array of 15 inertial measurement units (IMUs) mounted on a flexible printed circuit board that can be retrofitted into the instrument channel of conventional colonoscopes.
Tuukka Panula +3 more
wiley +1 more source
The estimation of pointing angle and normalized surface scattering cross section from GEOS-3 radar altimeter measurements [PDF]
The statistical error of the pointing angle estimation technique is determined as a function of the effective receiver signal to noise ratio. Other sources of error are addressed and evaluated with inadequate calibration being of major concern.
Brown, G. S., Curry, W. J.
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Advanced Science, EarlyView.ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen +7 more
wiley +1 more source
Standard Deviation of Spatially-Averaged Surface Cross Section Data from the TRMM Precipitation Radar [PDF]
We investigate the spatial variability of the normalized radar cross section of the surface (NRCS or Sigma(sup 0)) derived from measurements of the TRMM Precipitation Radar (PR) for the period from 1998 to 2009.
Jones, Jeffrey A., Meneghini, Robert
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First Order Sea Clutter Cross Section for HF Hybrid Sky-Surface Wave Radar [PDF]
, 2014 This paper presents a modified method to simulate the first order sea clutter cross section for high frequency (HF) hybrid sky-surface wave radar, based on the existent model applied in the bistatic HF surface wave radar.
Li, Y.J., Wei, Y.S., Zhu, Y.P.
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