Results 51 to 60 of about 32,600 (279)
, 2023 Low-overhead, robust, and fast-convergent time synchronization is important for resource-constrained large-scale industrial wireless sensor networks (IWSNs).
Zhaowei Wang +2 more
core +1 more source
Remote SensingThis study evaluates mission-long inter-sensor radiometric calibration biases in Sensor Data Record (SDR) and/or Temperature Data Record (TDR) radiances from NOAA microwave sounders, including Advanced Technology Microwave Sounder (ATMS) (Suomi National ...
Banghua Yan +4 more
doaj +1 more source
Remote SensingThis study provides a comprehensive, long-term evaluation of inter-sensor radiometric calibration biases for the NOAA OMPS Nadir and CrIS instruments using four complementary validation methodologies implemented within the Inter-Sensor Radiometric Bias ...
Banghua Yan +6 more
doaj +1 more source
A New Pivot Algorithm for Star Identification [PDF]
Journal of Astronomy and Space Sciences, 2014 In this study, a star identification algorithm which utilizes pivot patterns instead of apparent magnitude information was developed. The new star identification algorithm consists of two steps of recognition process.
Jakyoung Nah, Yu Yi, Yong Ha Kim
doaj +1 more source
A new star (sensor) is born [PDF]
International Conference on Space Optics — ICSO 2010, 2017 In the frame of the Dutch Prequalification for ESA Programs(PEP), as part of the efforts to design an integrated optical attitude control subsytem (IOPACS), a consortium of TNO and several SME's in the Netherlands have been working on a novel type of startracker called MABS (Multiple Aperture Baffled Startracker).
Leijtens, J. +10 more
openaire +2 more sources
Generic radiation hardened photodiode layouts for deep submicron CMOS image sensor processes [PDF]
, 2011 Selected radiation hardened photodiode layouts, manufactured in a deep submicron CMOS Image Sensor technology, are irradiated by 60Co gamma-rays up to 2.2 Mrad(SiO2) and studied in order to identify the most efficient structures and the guidelines ...
V. Goiffon +11 more
core +1 more source
Star Identification and Attitude Determination With Projective Cameras
IEEE Access, 2021 Images of starfields collected by a projective camera are useful for a variety of scientific and engineering purposes. This utility is exemplified by star trackers, which are amongst the most commonly used sensors for determining the attitude of modern ...
John A. Christian, John L. Crassidis
doaj +1 more source
A Design of Driving circuit for Star Sensor Imaging Camera
, 2016 The star sensor is a high-precision attitude sensitive measuring instruments, which determine spacecraft attitude by detecting different positions on the celestial sphere. Imaging camera is an important portion of star sensor. The purpose of this study
Li, DW (reprint author), Xian Inst Opt & Precis Mech CAS, Xian 710119, Peoples R China. +4 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
An Extended Kalman Filter-Based Attitude Tracking Algorithm for Star Sensors
Sensors, 2017 Efficiency and reliability are key issues when a star sensor operates in tracking mode. In the case of high attitude dynamics, the performance of existing attitude tracking algorithms degenerates rapidly.
Jian Li, Xinguo Wei, Guangjun Zhang
doaj +1 more source