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首页> 外文会议>14th international technical meeting of the Satellite Division of the Institute of Navigation (ION GPS-2001) >The Role of Heuristics in GPS Block IIFModernization
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The Role of Heuristics in GPS Block IIFModernization

机译：启发式方法在GPS块IIF r n现代化中的作用

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摘要

The NAVSTAR Global Positioning System (GPS) is arnspace-based navigation system providing users withrnhighly accurate three-dimensional position, velocity, andrntiming information. Created by the Department ofrnDefense to enhance US military warfighting capability, itrnis available for use, free of charge, to anyone with a GPSrnreceiver. Increased civil and commercial use of GPS,rncoupled with lessons learned from years of militaryrnoperations and specific experiences during Desert Stormrnand the Kosovo campaign, drove a desire to modernizernthe system - augmenting its capabilities while sustainingrnthe current GPS mission.rnIn response to new civil demands and the emergingrndoctrines of Navigation Warfare, the US Air Force wasrncharged with directing and procuring new improvementsrnfor GPS. Because of their heritage experience in thernbuilding of GPS satellites, Boeing was selected to supportrnthe Air Force in architecting the future of GPS. In thisrnrole, Boeing helped bound the problem and developrnfeasible top-level design concepts. As part of theirrnsystems engineering discipline, Boeing utilized reliablern?rules of thumb? (heuristics) to aid the architectingrnprocess, thereby guiding the introduction of newrncapabilities and technologies and helping their customerrnbring "form to function."rnThis paper examines the role heuristics played during thernhistory of GPS Modernization. While a completerndescription of the rigorous systems engineering processrn(via requirements analysis, trade study, and designrnsynthesis) is beyond the scope of this document, it doesrnidentify general guidelines that were applied, as well as arnsummary of design lessons learned during Modernization.rnIn highlighting the rules of thumb used during the systemsrnengineering process, it traces that history from earlyrnstudies through proposal preparation to the initialrnimplementation of three development programs ? BlockrnIIR Modernization, Block IIF, and Block III.
机译：NAVSTAR全球定位系统（GPS）是基于arnspace的导航系统，可为用户提供高度精确的三维位置，速度和定时信息。由国防部创建以增强美军作战能力的Itrnis可供配备GPS接收器的任何人免费使用。对GPS的民用和商业用途的增加，再加上在沙漠风暴和科索沃战役中多年军事行动的经验教训和特定经验，驱使人们对系统进行现代化改造，希望在保持当前GPS任务的同时增强其功能。新兴的导航战学使美国空军被迫指导和采购GPS的新改进。由于他们在GPS卫星建造方面的传统经验，波音公司被选中支持空军设计GPS的未来。波音公司在这个问题上帮助解决了问题，并提出了可行的顶层设计概念。作为系统工程学科的一部分，波音公司利用可靠的经验法则。 （启发式）以帮助架构过程，从而指导新功能和技术的引入，并帮助他们的客户实现“形式到功能”。本文研究了启发式在GPS现代化历史中所扮演的角色。尽管对严格的系统工程过程的完整描述（通过需求分析，贸易研究和设计综合）超出了本文档的范围，但它并不能确定所应用的一般准则以及现代化过程中汲取的设计经验教训的总结。系统工程过程中使用的经验法则，它可以追溯到从早期研究到提案准备到最初实施三个开发计划的历史。 BlockrnIIR现代化，IIF区块和III区块。

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