Results 91 to 100 of about 3,417,405 (292)
Computational phase correction algorithms for multi-aperture systems
Journal of the Optical Society of America A, 2020 Aperture cophasing can increase the resolution of a multi-aperture array while reducing optical system size and accounting for phase errors from hardware misalignments and atmospheric turbulence. Remapping apertures using an anamorphic pupil relay can separate the spatial frequency spectrum of a previously continuous modulation
Sarah E. Krug, David J. Rabb
openaire +2 more sources
Dental Microwear Texture Analysis on Radular Teeth
Advanced Materials Interfaces, EarlyView.3D microwear textures reveal how gastropod radular teeth respond to controlled abrasive contact. Distinct surface signatures distinguish regular abrasion from fracture‐dominated material removal, showing how mineralized coatings, fibrous cores, and substrate properties jointly shape wear and failure in a biological scraping interface.
Wencke Krings +2 more
wiley +1 more source
A Multi-Aperture Scintillation Sensor for Dome A, Antarctica [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractSite-testing measurements by the Australian group has already shown that Dome C on the Antarctic plateau is one of the best ground-based astronomical sites. Furthermore, Dome A, the Antarctic Kunlun Station, as the highest point on Antarctic inland plateau, where a Chinese Antarctic scientific expedition team first reached in 2005, is widely ...
Hualin Chen, Chong Pei, Xiangyan Yuan
openaire +1 more source
Calibration Issue in SMART Synthetic Aperture Radar Based on Scan-On-Receive [PDF]
, 2009 A new spaceborne Synthetic Aperture Radar (SAR) system based on SCan-On-REceive (SCORE) algorithm has been recently proposed in order to overcome the trade-off between spatial resolution and swath wide of current SAR systems. The compound architecture of
Bordoni, Federica +2 more
core
Multi-band dual-polarized shared aperture microstrip phased array
, 2016 Multi-band systems are becoming increasingly popular in both military and civil applications such as tactical radar systems and synthetic aperture radar (SAR) systems because their information capacity is significantly higher than single-band ...
Zhu Sun (6862685)
core +1 more source
Recent Advances of Slip Sensors for Smart Robotics
Advanced Materials Technologies, EarlyView.This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang +8 more
wiley +1 more source
Spaceborne Radar Technologies for Earth Remote Sensing [PDF]
, 2007 Synthetic Aperture Radar (SAR) is an indispensable source of information in earth observation since SAR is the only spaceborne sensor that has highresolution, all-weather and day-and-night imaging capability.
Moreira, Alberto
core
Ridge aperture antenna array as a high efficiency coupler for photovoltaic applications [PDF]
, 2011 Weak absorption of light near the absorption band edge of a photovoltaic material is one limiting factor on the efficiency of photovoltaics. This is particularly true for silicon thin-film solar cells because of the short optical path lengths and limited
Kinzel, Edward C. +2 more
core +1 more source
In Situ Two‐Dimensional Residual Stress Characterization of Thin Films
Advanced Materials Technologies, EarlyView.An integrated in situ curvature metrology platform combining speckle‐based curvature optical metrology (SCOM) with multi‐beam optical sensors (MOS) enables spatially resolved two‐dimensional curvature mapping of thick sputtered coatings. The SCOM technique provides excellent agreement with MOS while providing an extended measurable curvature range ...
Wai Jue Tan +6 more
wiley +1 more source
Aperture-Averaging - Theory and Measurements [PDF]
, 2004 Atmospheric laser communications using direct-detection systems do suffer from severe degradation caused by scintillation. Because the atmospheric cut-off frequency can be as low as 100 Hz, temporal averaging is not applicable in high-speed ...
Perlot, Nicolas, Fritzsche, Daniel
core