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首页> 美国政府科技报告 >A Study of Maritime Mobile Satellite Service Requirements, Frequency Planning, Modulation and Interference Analysis. Volume V. Joint Sharing of Aeronautical and Maritime Satellite Systems Cost/Performance Comparison of Band 8 Vs Band 9
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A Study of Maritime Mobile Satellite Service Requirements, Frequency Planning, Modulation and Interference Analysis. Volume V. Joint Sharing of Aeronautical and Maritime Satellite Systems Cost/Performance Comparison of Band 8 Vs Band 9

机译：海上移动卫星业务需求，频率规划，调制和干扰分析研究。第五卷。航空和海事卫星系统联合共用8 V频段的成本/性能比较9

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A review is presented of the present aeronautical operating environment, procedures, facilities and communications relating to both over-ocean air traffic control and airline company management operations. Postulations are made about changes to this aeronautical environment likely to result from inauguration of satellite services. An aeronautical satellite operations plan is presented. Similar data is summarized from PB-196 030 for the maritime environment; and, a comparison is made of the areas of service commonality and those for which the two services might benefit from a jointly shared system. Also presented is a technical and economic comparison of Band 8 vs Band 9 satellite systems. Link power budgets are normalized for comparable service performance variations are developed as a function of link propagation reliability. Satellite and user cost estimates are presented parametrically for comparable Band 8 and Band 9 services - first for approximately equal space segment costs with user costs as the variable and secondly for comparable user costs with the space segment as the variable. A section is also developed on user equipment performance and complexity as a function of transmission frequency indicating optimum operating portions of the spectrum. (Author)

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