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130 articles for “Satellite”
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Research ArticleOpen accessIn the keywordsHybrid Algorithm for Lossless Image Compression using Simple Selective Scan order with Bit Plane SlicingS. N. Sivanandam, A. Pasumpon PandianProblem statement: Identifying the new lossless image compression algorithm for high performance applications like medical and satellite imaging; a high quality lossless image is most important when reproduction which leads to classify the data for decision making. Approach: A new lossless hybrid algorithm based on simple selective scan order with Bit Plane Slicing method is presented for lossless Image compression … …Journal of Computer Science, Vol. 8, Issue 8 · 28 Jul 2012 · 7,486 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Coastal Current of the Andaman Sea Revealed by Reprocessed ObservationsSakharin Suwannathatsa, Prungchan Wongwises, Worachat Wannawong, Suphat VongvisessomjaiProblem statement: The surface currents in the Andaman Sea are observed and quantified by many studies in opposite of the local coastal current that is unclear. Knowing the contributor to this local current improves the simulation work in the most accurate way. This study reviews reprocessed observations from satellites and creates an oceanic model by taking data of 1995 to … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 22 May 2012 · 7,072 accessesView PDFCite
Research ArticleOpen accessIn the keywordsV-Band Fade Dynamics Characteristics Analysis in Tropical RegionKhairayu Badron, Ahmad Fadzil Ismail, Jafri Din, Ahmad Tharek Abdul RahmanProblem statement: Satellite operations at V-band in tropical and equatorial regions are constrained as a result of attenuation from rain. Approach: Statistics for 20 consecutive months of V-band terrestrial link signal attenuation measurements in Malaysia were presented in this analysis. Such information was considered very pertinent for Earth-space communication link design and can be used for initial groundwork plan for … …American Journal of Applied Sciences, Vol. 7, Issue 8 · 31 Aug 2010 · 7,808 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRelational GIS and Remote Sensing Database System for Al-Salt Area, JordanEyad H.R. Fadda, Maher Kakish, Emad Jalal AkawwiDue to the importance of database systems, integration between two Geomatics sciences, GIS and Remote Sensing has been made in order to support and serve various sectors in Jordan. GIS has been used to create layers that can show decision makers in a simple, easy and flexible manner. Remote Sensing will be used in creating images of how Jordan is … …American Journal of Engineering and Applied Sciences, Vol. 1, Issue 4 · 31 Dec 2008 · 6,957 accessesView PDFCite
Research ArticleOpen accessIn the keywordsNovel Approach to Determine the Effects of MS Environment using the Portable GPS Receiver with Built-in AntennaWan Azlan Wan Zainal Abidin, Kiyotaka Fujisaki, Mitsuo TateibaCommunication impairment on the Mobile Satellite (MS) path for non-geostationary satellite is mainly due to effect of multipath and shadowing. In order to study the signal quality received by the MS user, a receiver system that has similar characteristics to the actual receiver used by the MS user should be used. This study presents a novel approach to determine the … …American Journal of Applied Sciences, Vol. 5, Issue 8 · 31 Aug 2008 · 6,580 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRainfall Attenuation and Rainfall Rate Measurements in Malaysia Comparison with Prediction ModelsMandeep Singh Jit Singh, Syed Idris Syed Hassan, Mohd Fadzil AinAttenuation due to rain is a primary cause of communication impairment on satellite-earth paths, especially above 10GHz. Rainfall is a serious source of attenuation at such a frequency. This paper presents the characteristics of rain distribution in USM based on measured one minute rain rate. For attenuation of rain, predictions models like ITU and VIHT (Variable Isotherm Height Technique) model … …American Journal of Applied Sciences, Vol. 4, Issue 1 · 30 Apr 2007 · 6,939 accessesView PDFCite
Research ArticleOpen accessIn the keywordsAnalysis of Tropospheric Scintillation Intensity on Earth to Space in MalaysiaMandeep Singh Jit Singh, Syed Idris Syed Hassan, Mohd Fadzil Ain et al.This paper presents the results of a study on tropospheric scintillation on satellite link that has been performed at University Sains Malaysia (USM) to obtain statistics of scintillation from the 12.255 GHz Superbird C satellite with an elevation angle of 40.10. The objective of this analysis was to determine whether the long-term scintillation follows the log normal or gamma distribution. … …American Journal of Applied Sciences, Vol. 3, Issue 9 · 30 Sep 2006 · 7,268 accessesView PDFCite
Review ArticleOpen accessIn the keywordsQuantum Technology: Advances and TrendsLidong Wang, Cheryl Ann AlexanderQuantum science and quantum technology have become significant areas that have the potential to bring up revolutions in various branches or applications including aeronautics and astronautics, military and defense, meteorology, brain science, healthcare, advanced manufacturing, cybersecurity, artificial intelligence, etc. In this study, we present the advances and trends of quantum technology. Specifically, the advances and trends cover quantum computers and … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 2 · 15 May 2020 · 7,512 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe ‘Celalettin-Field Quantum Observation Tunnel’ a Quantum Communication Countermeasure Speculative StructureM. Celalettin, H. KingThe ‘Celalettin-Field Quantum Observation Tunnel’ (COT) is a speculative structure produced in an ensemble of Orbital Angular Momentum (OAM) polarized outer ‘s’ shell electrons, whereby an incoming photon, depolarizes ‘s’ shell electrons as it burrows through the ensemble, creating a tunnel. The depolarized particles when viewed as a single quantum system can theoretically be used to acquire information on the … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 1 · 6 Apr 2019 · 7,945 accessesView PDFCite
Research ArticleOpen accessIn the keywordsThe Gravity Field of a CubeJames Michael Chappell, Mark John Chappell, Azhar Iqbal, Derek AbbottWe calculate the Newtonian gravitational potential and field of a cubic, homogeneous asteroid and we apply it to the orbit of possible satellites. Large astronomical objects such as stars or planets, naturally tend to form spherical shapes due to the dominance of the gravitational forces, but as a thought experiment, we consider the properties of a planet in the form … …Physics International, Vol. 3, Issue 2 · 27 Mar 2013 · 15,337 accessesView PDFCite