搜索结果: 16-30 共查到“工学 Satellites”相关记录53条 . 查询时间(0.041 秒)
Potential for Advancements in Remote SensinG Using Small Satellites
Earth observation small satellites systems sensors platforms
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2015/11/23
Small satellites for remote sensing – how is a small satellite characterized, what is the basis for it and what are the trends, how can small satellite missions be achieved, what are the cost drivers ...
System Requirements and Mission Analysis for Spaceborne SAR Interferometry Based on Formation Flying Satellites
System Requirements Mission Analysis Spaceborne SAR Interferometry Based Formation Flying Satellites
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2015/11/20
With the purpose of further development of SAR satellite technique and for Earth’s topography, SAR interferometry, with which one can get, not only images with target’s azimuth and range information, ...
TOPOGRAPHIC MAPPING FROM SMALL SATELLITES:A CASE STUDY OF CHRIS/PROBA DATA
Small/micro satellites Modelling Stereoscopic Three-dimensional Accuracy
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2015/9/17
The new technology of small satellites (microsatellites) opens a new era in satellite Earth observations. Small satellites such as the ESA’s Project for On-Board Autonomy (PROBA), launched on October ...
New methods and satellites: A program update on the NASS cropland data layer and acreage program
AWiFS Landsat See5
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2015/9/6
The United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS) annually produces crop
specific classifications and acreage estimates over the major growing region...
in-depth investigations of parameters influencing accuracy of orthoimages from high resolution satellites
Orthoimages Accuracy analysis High spatial resolution satellites
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2015/9/1
Orthoimages are the most popular product from high spatial resolution satellite sensors. Various investigations, especially regarding Ikonos and Quickbird, have been published and achieved accuracies ...
MAPPING OF THE ICY SATURNIAN SATELLITES
Cassini Icy satellites planetary mapping
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2015/8/28
The Cassini spacecraft was launched in October 1997 from Cape Canaveral, Florida and arrived seven years later at Saturn. The
Saturnian system contains 56 satellites, from km-sized bodies to Titan, w...
PRIORITIES IN DESIGNING EARTH OBSERVATION SATELLITES FOR TURKEY'S NATURAL RESOURCES POTENTIAL AND DISASTER MITIGATION
Earth Geology Interferometry Satellite Turkey
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2015/8/17
Earth observation phenomena include monitoring of disasters originated from tectonic movements. Detecting land cover and climatic
changes, the studies of atmosphere, biodiversity, oceans, ecosystems...
NOCTURNAL MONITORING OF THE LAND SURFACE TEMPERATURE VARIATION IN THE RIO GRANDE DO SUL STATE USING AVHRR/NOAA SATELLITES
Climate Retrieval Surface Temperature Temporal Observation AVHRR/NOAA
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2015/7/29
The surface temperature is the net result of the climatic energy balance to the environmental process at the Earth. Therefore, accurate
estimation of land surface temperature (LST) can be regarded a...
COMBINED USE OF POLAR ORBITING AND GEO-STATIONARY SATELLITES TO IMPROVE TIME INTERPOLATION IN DYNAMIC CROP MODELS FOR FOOD SECURITY ASSESSMENT
Remote Sensing Agriculture Monitoring
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2015/7/29
Use of satellite data in crop growth monitoring could provide great value for regional food security assessments. By using the difference
between remotely sensed crop canopy temperature and the corr...
Small Satellites – A Tool for Earth Observation
Satellites remote sensing mapping
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2015/7/7
Small satellites with a mass between 10 to 500 kg have become a competitor to large satellites with a mass of over 1000 kg. This
development has come about through the technological advances in micro...
Aviation Utilization of Geostationary Satellites for the Augmentation of GPS:Ranging and Data Link
Aviation Utilization Geostationary Satellites Augmentation GPS Ranging Data Link
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2015/6/29
The Wide Area Augmentation System (WAAS) is a GPS-based navigation aid currently under development by the Federal Aviation Administration (FAA). WAAS will providecorrections to aviation users for the ...
Estimation of ICAO Threat Model Parameters For Operational GPS Satellites
Estimation ICAO Threat Model Parameters GPS Satellites
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2015/6/26
The ICAO Second Order Step threat model defines a class of signal deformations that present a potential integrity threat to GPS-based aircraft landing systems such as the Local Area Augmentation...
Range Biases on the WAAS Geostationary Satellites
Range Biases WAAS Geostationary Satellites
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2015/6/26
Due to limited receiver bandwidth and tracking configuration differences, measurements made on a narrowband geostationary satellite signal may differ significantly from those made on GPS signals and r...
Signal Deformations On Nominally Healthy GPS Satellites
Signal Deformations Nominally Healthy GPS Satellites
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2015/6/26
This paper describes the collection and analysis of real data from twenty-four current, nominally healthy GPS satellites in the context of the ICAO second-order step (2OS) fault model.
Characterization of Signal Deformations for GPS and WAAS Satellites
Characterization Signal Deformations GPS WAAS Satellites
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2015/6/25
Signal deformations are caused by imperfections or faults in the signal generating hardware onboard the satellites.Left uncorrected, these can lead to range errors. Thus they need to be measured and u...