Results 31 to 40 of about 3,239,156 (327)
Applied Sciences, 2017 In order to solve the problem of an uncertain initial state and big errors for hypersonic glide vehicle (HGV) tracking, a hybrid model algorithm is proposed by combining a single model algorithm with a multiple model algorithm.
Yu Fan +4 more
doaj +1 more source
Flush Air Data Sensing System for Launch Vehicle
气体物理, 2023 A flush air data sensing (FADS) system was designed to measure the aerosphere parameters at the launch vehicle fairing. The measurement plan and precision were investigated for the launch vehicle FADS.
Chuan CHENG, Yang LIU
doaj +1 more source
Space Debris Observation Using Star Sensors Based on Scanning Circle Model
IEEE AccessWith the large-scale deployment of mega-constellations, the number of on-orbit star sensors is rapidly increasing. Building on the advancements in star sensor detection capabilities, this paper proposes utilizing star sensors as dual-purpose sensors to ...
Fei Feng +4 more
doaj +1 more source
High performance metamaterial device with enhanced electromagnetic energy harvesting efficiency
AIP Advances, 2017 A high performance metamaterial device for electromagnetic energy harvesting is presented. The unit cell of the metamaterial device consists of four identical omega ring resonators arranged in rotational symmetry, and each omega ring is loaded with a 50 ...
Shuai Shang +4 more
doaj +1 more source
Improving the spatial accuracy of wildlife tracking data with automated radio telemetry systems
Animal BiotelemetryAutomated radio telemetry systems (ARTS) consisting of animal-borne radio transmitters and networks of fixed radio receivers are frequently used to continuously track wildlife movements over time.
Sean Burcher +5 more
doaj +1 more source
Facial Feature Tracking and Occlusion Recovery in American Sign Language [PDF]
, 1997 Facial features play an important role in expressing grammatical information in signed languages, including American Sign Language(ASL). Gestures such as raising or furrowing the eyebrows are key indicators of constructions such as yes-no questions ...
Castelli, Thomas J. +2 more
core
Pediatric Blood &Cancer, EarlyView.ABSTRACT Introduction We developed MedSupport, a multilevel medication adherence intervention designed to address root barriers to medication adherence. This study sought to explore the feasibility and acceptability of the MedSupport intervention strategies to support a future full‐scale randomized controlled trial.
Elizabeth G. Bouchard +8 more
wiley +1 more source
International Journal of Aerospace EngineeringAimed at the antijamming needs of the space tracking, telemetry command (TT&C) receiver under a low signal-to-noise ratio, the anti-interference advantage of the dual-sequence frequency hopping (DSFH) communication system is applied.
Guangkai Liu +4 more
doaj +1 more source
Multiview System for Tracking a Fast Moving Object Against Complex Backgrounds [PDF]
, 2016 Tracking the real world coordinate of a fast moving object against a complex background is very challenging. When designing a multi-view system for this purpose, one key consideration is the arrangement of the cameras such that the object can be ...
Wong, Patrick
core
Tracking MEP installation works [PDF]
, 2013 Recent research efforts to improve construction progress tracking has focused on employing emerging technologies such as three dimensional (3D) imaging, including digital photogrammetry and 3D Terrestrial Laser Scanning (TLS). Previous research has shown
Bosché, Frédéric +5 more
core +2 more sources