Results 11 to 20 of about 2,219,674 (68)

The Development of high fidelity linearized J2 models for satellite formation flying control [PDF]

, 2005
The inclusion of the linearized J2 effect in the Hill equations of relative motion gives greater insight into satellite formation flying dynamics, and the opportunity to investigate alternative feedback control strategies for the station keeping task.
Roberts, Peter C. E., Roberts, Jennifer A.   +1 more
core   +7 more sources

Two for the Road: Measuring Regional Disparity and Agglomeration in Human Development Level and Transportation Infrastructure

Journal of Advanced Transportation, Volume 2022, Issue 1, 2022., 2022
As the core element of social‐economic development in the Qinghai‐Tibet Plateau, transportation dramatically shapes the scale, type, and intensity of human activities. First, this study utilizes night light data and kilometer‐grid population data to construct night light development index (NLDI) and to evaluate the human development level at the county
Zhiheng Wang, Tao Xing, Daikun Wang, Hongkui Fan, Dongchuan Wang, Yanwang Wu, Qiaozhen Guo, Lina Xiu, Maria Vittoria Corazza   +8 more
wiley   +1 more source

Compensation for the non‐uniformity correction of multi‐channel TDI CCD under variable gain

IET Optoelectronics, Volume 15, Issue 1, Page 27-39, February 2021., 2021
Abstract The compensation for non‐uniformity correction of multi‐channel time delay integration charge coupled device (TDI CCD) under variable gain is presented. The mathematical model of photoelectric conversion is established first, and, then, a two‐step non‐uniformity correction method for multi‐channel TDI CCD is proposed.
Yun‐Hui Li, Xiao‐Dong Wang, Zhi Wang
wiley   +1 more source

RECOGNITION OF URBAN FUNCTIONAL REGIONS AT STREET SCALE BASED ON LJ1-01 NIGHT-TIME LIGHT REMOTE SENSING AND MOBILE BIG DATA [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Night-time light (NTL) remote sensing data has been widely used in the analysis of human activities at night for a large extent, such as light pollution monitoring and recognition of urban functional regions.
Q. Zhou, Q. Zhou, Y. Zhang, Y. Zhang, D. Gao, B. Sun   +5 more
doaj   +1 more source

Spatial Distribution and Characteristics of Population in the Guangdong-Hong Kong- Macao Greater Bay Area Based on Night-Light Remote Sensing

Redai dili, 2023
The Guangdong-Hong Kong-Macao Greater Bay Area (GBA) is one of the most open regions in China, with the strongest economic vitality and fastest population growth, playing an important role in China's development strategy.
Li Shanshan, Lin Wentan
doaj   +1 more source

Potentiality of SDGSAT-1 glimmer imagery to investigate the spatial variability in nighttime lights

International Journal of Applied Earth Observations and Geoinformation, 2023
The successful launch of Sustainable Development Science Satellite 1 (SDGSAT-1) complements the existing nighttime lights (NTL) data with high spatial resolution in the three visible bands (40 m) and the panchromatic band (10 m).
Biyun Guo, Deyong Hu, Qiming Zheng
doaj   +1 more source

Multi-nighttime-light data comparison analysis based on image quality values and lit fishing vessel identification effect

Frontiers in Environmental Science, 2023
Fisheries provide high-quality protein for many people, and their sustainable use is of global concern. Light trapping is a widely used fishing method that takes advantage of the phototropism of fish.
Weifeng Zhou, Huijuan Hu, Tianfei Cheng
doaj   +1 more source

Housing Vacancy Rate in Major Cities in China: Perspectives from Nighttime Light Data

Complexity, Volume 2020, Issue 1, 2020., 2020
In recent years, the phenomenon of housing vacancy rate (HVR) has attracted considerable attention, especially concerning unjustified expansions of Chinese cities. The aforementioned trend is disadvantageous in that it will ultimately lead to tremendous wastage of valuable land that could otherwise be more productively utilized.
Zhiru Tan, Donglan Wei, Zixu Yin, Jianhong (Cecilia) Xia   +3 more
wiley   +1 more source

Next Generation High Throughput Satellite System [PDF]

, 2012
This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS.
Vidal, Oriol, E. Alberty, J. Lacan, Bousquet, Michel, G. Verelst, Lacan, Jérôme, M. Bousquet, O. Vidal, J. Radzik, Radzik, José, Verelst, Greet, Alberty, Eric   +11 more
core   +1 more source

Adaptive filtering applications to satellite navigation [PDF]

, 2010
PhDDifferential Global Navigation Satellite Systems employ the extended Kalman filter to estimate the reference position error. High accuracy integrated navigation systems have the ability to mix traditional inertial sensor outputs with navigation ...
Zhahir, Md Amzari
core   +4 more sources