Flight Test Evaluation of a Prototype Local Area Augmentation System Architecture
Flight Test Evaluation of a Prototype Local Area Augmentation System Architecture
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发表时间：
1997-09
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通讯作者：
B. Pervan;D. Lawrence;K. Gromov;Guttorrn Opshaug;J. Christie;P. Ko;A. Mitelman;S. Pollen;P. Enge;B. Parkinson
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作者：
B. Pervan;D. Lawrence;K. Gromov;Guttorrn Opshaug;J. Christie;P. Ko;A. Mitelman;S. Pollen;P. Enge;B. Parkinson
已经开发了局域增强系统（LAAS）结构替代方案，以提供符合飞机精确进场和着陆的严格要求的卫星导航性能。位于进场跑道两端的地基机场伪卫星（APLs）的代码和载波相位测量值在飞机上得到最佳处理，以提高垂直性能，从而提高导航可用性。此外，一个新的完整性监测架构，介绍了LAAS参考接收机故障提供最严格的可实现的保护限制。为了证明概念上的LAAS体系结构是可实现的，在加州的莫菲特联邦机场实现了一个原型系统，在NASA的Beechcraft King Air上进行了飞行试验。在本文中，地面和空中组件的原型架构的实现进行了说明。1997年9月进行的空中国王飞行试验的实时实验结果表明，APL结构具有出色的导航性能，包括0.46米的95%垂直导航误差。
A Local Area Augmentation System (LAAS) architecture alternative has been developed to provide satellite navigation performance compliant with the stringent requirements for aircraft precision approach and landing. Code and carrier phase measurements from ground-based airport pseudolites (APLs), located at each end of the approach runway, are optimally processed at the aircraft to improve vertical performance and thus increase navigation availability. In addition, a new integrity monitoring architecture is introduced to provide the tightest achievable protection limits with respect to LAAS reference receiver failures. To demonstrate that the notional LAAS architecture is realizable, a prototype system was implemented at Moffett Federal Airfield in California for flight testing on a NASA Beechcraft King Air. In this paper, the ground and air components of the prototype architecture implementation are described. The real-time experimental results from King Air flight trials performed in September 1997 show exceptional navigation performance with the APL architecture, including a 95% vertical navigation error of 0.46 m.