工学 >>> 力学 农业工程 林业工程 工程与技术科学基础学科 测绘科学技术 材料科学 矿山工程技术 石油与天然气工程 冶金工程技术 机械工程 光学工程 仪器科学与技术 动力与电气工程 能源科学技术 核科学技术 电子科学与技术 信息与通信工程 控制科学与技术 计算机科学技术 化学工程 纺织科学技术 印刷工业 服装工业、制鞋工业 轻工技术与工程 食品科学技术 土木建筑工程 水利工程 交通运输工程 船舶与海洋工程 航空、航天科学技术 兵器科学与技术 环境科学技术 安全科学技术 工业设计
搜索结果: 1-15 共查到工学 LAAS相关记录32条 . 查询时间(0.046 秒)
Future Local Area Augmentation System (LAAS)architectures will most likely be constrained to lie on airport property. Such a system must provide protection against rare events in the GPS Signal in Spa...
A Local Area Augmentation System (LAAS) architecture has been developed to provide satellite navigation performance compliant with the stringent requirements for aircraft precision approach and landin...
The objective of Signal Quality Monitoring (SQM) is to improve integrity of the space segment of Local Area Aug mentation System (LAAS) by detecting satellite generated GPS signal faults. As seen in t...
In near future, there will be two more civilian GPS signals,at 1227.60 MHz and 1176.45 MHz, in addition to thepresent one at 1575.42 MHz. Of many possible benefits from the three civilian signal...
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...
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...
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.
Stanford University has developed a Local Area Augmentation System (LAAS) ground facility prototype known as the Integrity Monitor Testbed (IMT) to demonstrate the feasibility of LAAS precision approa...
In order to reflect the impact of spatial ionospheric gradients on Local Area Augmentation System (LAAS) users, the LAAS Ground Facility (LGF) broadcasts a conservative standard deviation (σvert_iono_...
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...
The ionosphere spatial gradient and its temporal rate of change in the vicinity of a LAAS-equipped airport are likely to influence the architecture required to meet the Category II/III precision appro...
Since GPS signals have very low received power levels (−130 dBm, or −160 dBW), their vulnerability to RF Interference (RFI) is a serious concern. This is particularly true for GPS-based sa...
Both WAAS and LAAS receivers use carrier-smoothing filters to reduce the effects of multipath and thermal noise at the aircraft. For the majority of users this reduces the magnitude of the errors and ...
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 (...
Several severe ionosphere storms have occurred in recent years that tripped the WAAS storm detector and caused partial WAAS service shutdowns. Under extreme conditions, these spatial gradients can thr...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...