Results 11 to 20 of about 393 (137)

Star-Based Calibration of the Installation Between the Camera and Star Sensor of the Luojia 1-01 Satellite [PDF]

open access: yesRemote Sensing, 2019
Ground control points (GCPs) are generally used to calibrate the installation between the camera and star sensor of a satellite in orbit and improve the geometric positioning accuracy of the satellite.
Zhichao Guan   +2 more
exaly   +5 more sources

On-Orbit Geometric Calibration and Validation of Luojia 1-01 Night-Light Satellite [PDF]

open access: yesRemote Sensing, 2019
The Luojia 1-01 Satellite (LJ1-01) is the first professional night-light remote-sensing satellite in China, and thus, it is of pioneering significance for the development of night-light remote sensing satellites in China and the application of remote ...
Guo Zhang   +2 more
exaly   +5 more sources

On-Orbit Signal-to-Noise Ratio Test Method for Night-Light Camera in Luojia 1-01 Satellite Based on Time-Sequence Imagery [PDF]

open access: yesSensors, 2019
Night-light remote sensing imaging technologies have increasingly attracted attention with the development and application of focal plane arrays. On-orbit signal-to-noise ratio (SNR) test is an important link to evaluate night-light camera’s ...
Wei Wang, Xing Zhong, Zhiqiang Su
doaj   +5 more sources

Anthropogenic Heat Flux Estimation Based on Luojia 1-01 New Nighttime Light Data: A Case Study of Jiangsu Province, China [PDF]

open access: yesRemote Sensing, 2020
With the rapid process of urbanization, anthropogenic heat generated by human activities has become an important factor that drives the changes in urban climate and regional environmental quality.
Zhongli Lin, Hanqiu Xu, Xu Hanqiu
exaly   +5 more sources

Analyzing Pixel-Level Relationships between Luojia 1-01 Nighttime Light and Urban Surface Features by Separating the Pixel Blooming Effect [PDF]

open access: yesRemote Sensing, 2021
Nighttime light (NTL) remote sensing data can effectively reveal human activities in urban development. It has received extensive attention in recent years, owing to its advantages in monitoring urban socio-economic activities.
Ji Wu, Zhi Zhang, Xiao Yang, Xi Li
doaj   +3 more sources

Using Dual Spatial Clustering Models for Urban Fringe Areas Extraction Based on Night-time Light Data: Comparison of NPP/VIIRS, Luojia 1-01, and NASA’s Black Marble

open access: yesISPRS International Journal of Geo-Information, 2023
Night-time light data (NTL) have been extensively utilized to map urban fringe areas, but to date, there has not been a comprehensive evaluation of the existing spatial clustering methods for delineating the urban fringe using different types of night ...
Jie Zhu   +5 more
doaj   +3 more sources

Investigation of Nighttime Light Pollution in Nanjing, China by Mapping Illuminance from Field Observations and Luojia 1-01 Imagery [PDF]

open access: yesSustainability, 2020
In recent years, the number of artificial light sources has tremendously increased with the development of lighting technology and the economy. Nighttime light pollution has been an increasing environmental problem, resulting in negative impacts on human health and the ecological environment.
Jiayi Li, Yongming Xu, Boyang Su
exaly   +3 more sources

A POI and LST Adjusted NTL Urban Index for Urban Built-Up Area Extraction [PDF]

open access: yesSensors, 2020
Nighttime light (NTL) images have been broadly applied to extract urban built-up areas in recent years. However, the typical NTL images provided by Defense Meteorological Satellite Program/Operational Linescan System (DMSP/OLS) and National Polar ...
Fei Li   +4 more
doaj   +3 more sources

Delimitation of urban systems by Luojia 1-01 night-time light imagery

open access: yesRemote Sensing Technologies and Applications in Urban Environments IV, 2019
Peer ...
Arellano Ramos, Blanca   +1 more
core   +5 more sources

Analyzing parcel-level relationships between Luojia 1-01 nighttime light intensity and artificial surface features across Shanghai, China: A comparison with NPP-VIIRS data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2020
Nighttime light (NTL) remote sensing data have been widely used to derive socioeconomic indices at national and regional scales. However, few studies analyzed the factors that may explain NTL variations at a fine scale due to the limited resolution of ...
Congxiao Wang   +7 more
doaj   +2 more sources

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