搜索结果: 1-12 共查到“飞行器控制、导航技术 LAAS”相关记录12条 . 查询时间(0.089 秒)
The Effects of Local Ionospheric Decorrelation on LAAS:Theory and Experimental Results
Local Ionospheric Decorrelation LAAS Theory Experimental Results
2015/6/29
Solar cycle 23 is expected to reach a maximum in the year 2000. This has produced a recent flurry of research about the possible adverse effects of the ionosphere on the millions of GPS users. The int...
LAAS Sigma-Mean Monitor Analysis and Failure-Test Verification
LAAS Sigma-Mean Monitor Analysis Failure-Test Verification
2015/6/29
The Local Area Augmentation System (LAAS) is a ground-based differential GPS system being developed to support aircraft precision approach and landing navigation with guaranteed integrity. Stanford Un...
1.5 System Overview,Recent Developments,and Future Outlook for WAAS and LAAS
System Overview Recent Developments Future Outlook WAAS LAAS
2015/6/26
Over the past decade, two separate approaches have been developed to augment the Global Positioning System to meet the accuracy, integrity, continuity, and availability needs of civil aviation users.
Using WAAS Ionospheric Data to Estimate LAAS Short Baseline Gradients
WAAS Ionospheric Data Estimate LAAS Short Baseline Gradients
2015/6/26
The Local Area Augmentation System (LAAS) is intended to provide real-time differential GPS corrections with the high accuracy, availability, and integrity required for Category II/III landings. In or...
Core Overbounding and its Implications for LAAS Integrity
Core Overbounding Implications LAAS Integrity
2015/6/26
Jason Rife is a Research Associate studying the Local Area Augmentation System (LAAS) at Stanford University. After receiving his B.S. in mechanical and aerospace engineering from Cornell University (...
LAAS Study of Slow-Moving Ionosphere Anomalies and Their Potential Impacts
Ionosphere Anomalies Potential Impacts
2015/6/26
Triggered by several severe ionosphere storms that have occurred in recent years, research has been done to studying those anomalies, the physics behind them, and their potential impact on augmented G...
Mitigation of Anomalous Ionosphere Threat to Enhance Utility of LAAS Differentially Corrected Positioning Service (DCPS)
Mitigation Anomalous Ionosphere Threat LAAS Differentially Corrected Positioning Service (DCPS)
2015/6/25
Local Area Augmentation System (LAAS) can be used for both Category I (CAT I) precision approach and Differentially Corrected Positioning Service (DCPS) navigation applications. Through its support of...
Enabling the LAAS Differentially Corrected Positioning Service (DCPS):Design and Requirements Alternatives
Enabling LAAS Differentially Corrected Positioning Service (DCPS) Requirements Alternatives
2015/6/25
Young Shin Park is a Ph.D. Candidate in Aeronautics and Astronautics in the Global Positioning System (GPS) Research Laboratory at Stanford University. Her current research interests are enabling LAAS...
Ephemeris Type A Fault Analysis and Mitigation for LAAS
Ephemeris Type Fault Analysis Mitigation LAAS
2015/6/25
The Local Area Augmentation System (LAAS) has been developed by the FAA to enable precision approach and landing operations using the Global Positioning System (GPS). Each LAAS installation provides s...
Enabling LAAS Airport Surface Movement:Mitigating the Anomalous Ionospheric Threat
LAAS DCPS airport surface movement anomalous ionosphere
2015/6/25
The Local Area Augmentation System (LAAS) can be used for both precision approach and Differentially Corrected Positioning Service (DCPS) applications. Through its support of DCPS, the LAAS Ground Fac...
局域增强系统(LAAS)地面主控站(LGF)广播的差分修正量所包含的非零均值高斯误差和非高斯误差对系统的可用性造成较大的威胁。为此,提出一种均值膨胀和非高斯膨胀相结合的算法以改进传统的sigma膨胀算法。通过恰当地选取各膨胀系数,采用改进算法可在满足各类型误差尾部覆盖的同时,还可有效提高系统的可用性水平。计算机仿真结果表明:与传统的sigma膨胀算法相比,在无卫星故障时,改进算法可将系统可用性水平...