Results 41 to 50 of about 2,547,290 (363)

Argoverse: 3D Tracking and Forecasting With Rich Maps [PDF]

open access: yesComputer Vision and Pattern Recognition, 2019
We present Argoverse, a dataset designed to support autonomous vehicle perception tasks including 3D tracking and motion forecasting. Argoverse includes sensor data collected by a fleet of autonomous vehicles in Pittsburgh and Miami as well as 3D ...
Ming-Fang Chang   +10 more
semanticscholar   +1 more source

High performance metamaterial device with enhanced electromagnetic energy harvesting efficiency

open access: yesAIP 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

Track Your Track (TYT)

open access: yesEducation and Research Archive, 2021
Today, Cloud Computing is completely taking over businesses by delivering high-quality computer services and solutions over several servers, databases, storage spaces, and various software. It provides the required flexibility, agility, and scalability to expand and innovate. All this comes with a cost- Security. In this project, we’re going to discuss
openaire   +3 more sources

Construction Progress and Aviation Flight Test of BDSBAS

open access: yesRemote Sensing, 2022
As an important part of the BeiDou global navigation satellite system (BDS-3), the BeiDou satellite-based augmentation system (BDSBAS) aims to provide a high-integrity navigation service for users in China and its surrounding areas.
Weiguang Gao   +6 more
doaj   +1 more source

A correction method of spin-stabilized satellites attitude control based on infrared benchmark

open access: yesDianzi Jishu Yingyong, 2019
Aiming at the problem that there is a large deviation of the spin-stabilized satellite using infrared benchmark for attitude controlling, the control theory of isoclinic angle is described firstly, the difference between the solar reference and infrared ...
Zhou Jinbiao   +4 more
doaj   +1 more source

Performance Improvement for Single-Photon LiDAR with Dead Time Selection

open access: yesInternational Journal of Aerospace Engineering, 2022
Compared with the impulse LiDAR, the single-photon LiDAR has higher measurement sensitivity in the prominent feature, especially for space-based long-distance imaging.
Lei Feng   +3 more
doaj   +1 more source

Tracking Cougars

open access: yes, 2022
Cougars make a living by not being seen. In areas disturbed by humans, these cats are most active at dusk and early in the morning. In low-light conditions, cougars see up to six times better than humans.
openaire   +1 more source

Global capabilities of BeiDou Navigation Satellite System

open access: yesSatellite Navigation, 2020
The BeiDou Navigation Satellite System (BDS) has completed the constellation deployment and started to provide global services. After achieving the capabilities of global coverage, global first-class accuracy for Positioning, Navigation and Timing (PNT),
Jun Lu, Xia Guo, Chengeng Su
doaj   +1 more source

The Channel Fading Influence of the Receiver Operating Characteristics of the TT&C Receiver Based on the Dual-Sequence Frequency Hopping

open access: yesInternational Journal of Aerospace Engineering
Aimed 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

Improvement of coated aluminum sheet pBRDF model based on scattering and phase function optimization

open access: yesScientific Reports, 2023
The pBRDF model is able to relate the properties of target materials to the polarization information of incident and reflected light, and is an important basis for obtaining polarization information of targets in space.
HongYu Sun   +10 more
doaj   +1 more source

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