曝光臺 注意防騙 網曝天貓店富美金盛家居專營店坑蒙拐騙欺詐消費者

A類障礙物限制測量（OLS）
􀃈 設備安裝方案
􀂙 坐標測量，方案設計與評估
􀃈 設備安裝測試
􀂙 土建，設備運輸，物理安裝，安裝性能測試
􀃈 培訓
􀃈 飛行程序設計
中國民航局空中交通管理局
4、計劃進度
􀀴第三階段——試驗與驗證
􀃈GBAS地面測試
􀂙 靜態測試，動態測試
􀃈GBAS飛行測試
􀂙 SIS測試，功能測試，性能測試
􀃈GBAS飛行程序測試
中國民航局空中交通管理局
4、計劃進度
􀀴第四階段——分析與評估
􀃈GBAS性能分析評估
􀃈 Honeywell SLS-4000系統的中國民航局
認證
􀃈 Honeywell SLS-4000系統的飛行校驗
􀃈GBAS飛行程序評估
􀃈GBAS運行效益分析
􀃈 GBAS CAT II/III研究
中國民航局空中交通管理局
4、計劃進度
􀀴相關各方：
􀃈 民航局計劃司、飛標司、適航司
􀃈 民航局空管局、地區空管局、機場當局、
設計院
􀃈 航空公司、校飛中心
􀃈 民航數據公司、中電集團等
􀃈 Honeywell、Rockwell、Boeing等
中國民航局空中交通管理局
謝謝
中國民航局空中交通管理局
Dave Jensen, John Howard
Honeywell, Precision Landing Systems
29-30 Oct 2009
CAAC New Technology Seminar - GNSS
GNSS and GBAS Introduction
􀃆 Honeywell.com
GNSS and GBAS
• Global Navigation Satellite System (GNSS)
– Current implementations, applications
– How it works
– Accuracy, Integrity
• Types of GNSS Augmentation
• Ground Based Augmentation System (GBAS)
– How it works
– Architecture
– Subsystems
• GPS Accuracy and Aircraft Protection Levels
– Un-augmented
– With WAAS
– With GBAS
Dave Jensen/John Howard
2
CAAC New Technology Seminar – GBAS 29-30 October 2009
􀃆 Honeywell.com
Current GNSS
GNSS Compass GPS Galileo GLONASS
Origin China USA Europe Russia
Operational 2015 1995 2012 1995
# Satellites NA / 35 30 / 32 NA / 30 19 / 24
21 150 k 22 200 k 23 222 k 19 100 k
• Global Navigation Orbits
21,150 km
12.6h
22,200 km
12.0h
23,222 km
14.1h
19,100 km
11.3h
Satellite Systems (GNSS)
– Have become a global utility
– Provide civilian and military (precise) positioning services
– Consistent, predictable, dependable performance
• Applications for GNSS Keep Growing
– Agriculture, Aviation, Marine, Surveying, Traffic, Timing, Tectonics...
P i i i ti ith h l )
Dave Jensen/John Howard
3
CAAC New Technology Seminar – GBAS 29-30 October 2009
– Precision navigation ( with help)
􀃆 Honeywell.com
GNSS Theory of Operation
Dave Jensen/John Howard
4
CAAC New Technology Seminar – GBAS 29-30 October 2009
􀃆 Honeywell.com
GNSS Theory of Operation
• Each satellite transmits its position and a time signal
• The signals are delayed by the distance traveled to user
• From the delay, user calculates distance or “pseudorange” to each satellite
• User determines where there pseudoranges “overlap”
– This is your position!
• GNSS Provides Position, but No Integrity and Limited Accuracy
– Precision application require accuracy
– Safety applications require integrity
• Receiver Autonomous Integrity Monitor (RAIM)
– Provides user with integrity of their position solution
• Used in aircraft receivers
– Requires at least 5 satellites in view
– Receiver excludes 1 or 2 satellites
• Determine a “position” (with satellite excluded)
– Repeat for all satellites in view
– Determine error bound (integrity) of position by
• Discarding outlier “position” solutions
Dave Jensen/John Howard
5
CAAC New Technology Seminar – GBAS 29-30 October 2009
• Computing variance of “position” solutions
􀃆 Honeywell.com
GNSS Accuracy
• GPS Position Errors can be up to 10 m
• Predominant GNSS Error Sources are:
– Ionosphere (up to 5 m)
– Satellite Position (up to 2.5 m)
– Troposphere (up to 2 m)
– Satellite Clock (up to 2 m)
– Multipath/Reflections (up to 1 m)
– Calculation/Rounding (up to 1 m)
• Poor Geometry of Satellites Increases these Errors
– Geometric Dilution of Precision (GDOP)
• Errors are Measurable, Locally-Correlated, but not Predictable
　
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