Results 41 to 50 of about 437 (189)
Applications of satellite ‘hyper-sensing’ in Chinese agriculture:Challenges and opportunities [PDF]
, 2018 Ensuring adequate food supplies to a large and increasing population continues to be the key challenge for China. Given the increasing integration of China within global markets for agricultural products, this issue is of considerable significance for ...
Blackburn, George Alan +4 more
core +1 more source
X-band synthetic aperture radar methods [PDF]
, 2020 Spaceborne Synthetic Aperture Radars (SARs), operating at L-band and above, offer microwave observations of the Earth at very high spatial resolution in almost all-weather conditions. Nevertheless, precipitating clouds can significantly affect the signal
Marzano F. S., Mori S., Pierdicca N.
core +1 more source
Precise orbit determination of LEO satellites : a systematic review [PDF]
, 2023 The need for precise orbit determination (POD) has grown significantly due to the increased amount of space-based activities taking place at an accelerating pace.
Bhuiyan, M. Zahidul H. +5 more
core +1 more source
Remote Sensing, 2017 On-orbit radiometric characterization of the multispectral (MS) imagery of the Korea Aerospace Research Institute (KARI)’s Korea Multi-Purpose Satellite-3A (KOMPSAT-3A), which was launched on 25 March 2015, was conducted to provide quantitative ...
Jong-Min Yeom +4 more
doaj +1 more source
Development of Mobile Active Transponder for KOMPSAT-5 SAR Image Calibration and Validation [PDF]
The Journal of Korean Institute of Electromagnetic Engineering and Science, 2013 KOMPSAT-5(KOrea Multi-Purpose SATellite-5) has a benefit of continuously conducting its mission in all weather and even night by loading SAR(Synthetic Aperture Radar) payload, which is different from optical sensor of KOMPSAT-2 satellite. During IOT(In-Orbit Test) periods, SAR image calibration should be conducted through ground target of which ...
Durk-Jong Park, Kyung-Whan Yeom
openaire +1 more source
Detection of Damaged Buildings Using Temporal SAR Data with Different Observation Modes
Remote Sensing, 2023 Synthetic Aperture Radar (SAR) remote sensing has been widely used as one of the most effective tools for responding to earthquake disasters. In general, damaged-building detection with SAR data has been conducted based on change detection using temporal
Minhwa Kim, Sang-Eun Park, Seung-Jae Lee
doaj +1 more source
IEEE Access, 2020 Texture in synthetic aperture radar (SAR) images is a combination of the intrinsic texture of scene backscattering and the texture due to noncoherent high-frequency multiplicative noise (HMN) interactions that reflect erroneous information and lead to ...
Iman Heidarpour Shahrezaei +1 more
doaj +1 more source
Precision Assessment of Near Real Time Precise Orbit Determination for Low Earth Orbiter [PDF]
Journal of Astronomy and Space Sciences, 2011 The precise orbit determination (POD) of low earth orbiter (LEO) has complied with its required positioning accuracy by the double-differencing of observations between International GNSS Service (IGS) and LEO to eliminate the common clock error of the ...
Jong-Yeoun Choi, Sang-Jeong Lee
doaj +1 more source
A Generic, Multimodal Geospatial Data Alignment System for Aerial Navigation
Remote Sensing, 2023 We present a template matching algorithm based on local descriptors for aligning two geospatial products of different modalities with a large area asymmetry.
Victor Martin-Lac +2 more
doaj +1 more source
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 8, 28 April 2026.Abstract China has become a global hotspot of ozone (O3) pollution, and understanding O3 formation regime is crucial for air quality management. Satellite‐observed formaldehyde‐to‐nitrogen‐dioxide ratio (HCHO/NO2, FNR) has long been demonstrated as an efficient way to infer O3 formation regime.
Qianqian Yang +14 more
wiley +1 more source