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Using suitable split and merge scale parameters, the FY-2 Remote Sensing data and cloud products were spliced and merged based on the Canny operator conduct. The feature parameters, such as, mean square error, mean square gradient, gray entropy, entropy gradient, inertial, inverse gap and other features, were calculated for each cell division gradation. According to stratus, cumulonimbus, cirrus,...
The design and development of aerospace product is a collaborative multi-discipline project. The integrated and consistent information modeling of all the information, models, documents and other product data generated during design and development is critical to success. An integrated information model, defined as EDPS (Engineering Digital Prototyping for Satellite) is proposed. Aiming at modeling...
Near-space platforms defined as the aerocrafts flying in the space region between 20km and 100km which is above the storms and not constrained by orbital mechanics like satellites or high fuel consumptions like airplanes, they can stay at a specific site almost indefinitely to provide a persistent coverage. Although current spaceborne and airborne synthetic aperture radar (SAR) systems have playing...
This paper is proposing a practical approach for a Geosynchronous Transfer Orbit design. To design the intermediate orbits between the injection orbit and the Geosynchronous Orbit were used the Hohmann Transfer Orbit, Keppler 3rd Law and the propellant consumption equations. According to design, these intermediate orbits will be followed by a communication satellite during its orbital maneuver sequence...
This paper is proposing a practical approach for a Geosynchronous Transfer Orbit design. To design the intermediate orbits between the injection orbit and the Geosynchronous Orbit were used the Hohmann Transfer Orbit, Keppler 3rd Law and the propellant consumption equations. According to design, these intermediate orbits will be followed by a communication satellite during its orbital maneuver sequence...
The objective of this research is to investigate the effectiveness of the radar vegetation index (RVI) derived from ALOS PALSAR full polarimetric data for forest area mapping. Comparison was made between RVI and NDVI of Landsat TM data. After examining of the index maps and the corresponding histograms, forest/non-forest segmentation was performed by unsupervised classification and by threshold method...
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