{ "item_title" : "Phased Array Antenna Beam Steering for Satellite Tracking", "item_author" : [" Chee Kyun Ng "], "item_description" : "Nowadays achievements on mobile satellite communication system have prompted the development of several Non Geostationary Earth Orbit (Non-GEO) satellite systems that promises worldwide connectivity for real-time communications. The mobility of Non-GEO satellites require high directivity satellite tacking technique and reliable inter-satellite handover algorithm to ensure that connectivity between end users are not interrupted. Phased array antenna is proposed to obtain high directivity beam for satellite tracking. The mathematical model has demonstrated that a narrow beam with high directivity could be generated. A high directivity beam from phased array antenna is generated and steered to link up with incoming ascending satellite at one end when the connected outgoing descending satellite exceeded the defined critical elevation angle at the other end. It may help to lower the inter-satellite handover delay by accurately tracking the position of the satellite with the same signal level before the handover. This book is recommended for professional, technician, manager, researcher, lecturer or student.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/3/83/831/659/3838316592_b.jpg", "price_data" : { "retail_price" : "52.92", "online_price" : "52.92", "our_price" : "52.92", "club_price" : "52.92", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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