5. GBAS
1.
GNSS
ICAOSARPs
GPS
GBAS Ground- Based Augmentation System 1
GPS
CAT-IIIGBAS CAT-I SARPs
2001 CAT-IIISARPs
GBAS
GBAS ICAO
VHF 13GBAS
RFSignal Quality
Monitor; SQM
GBAS
20CAT-I
GBAS
H21GBAS
GBAS
2. GBAS GBAS 1GPS 3 4 GPS
VHF
1. GBAS
電子航法研究所研究発表会(第 10 回平成 22 年 6 月)
5. GBAS プロトタイプ開発の概要と電離圏モニタ方式
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Lateral Protection Level; LPLVertical Protection
Level; VPL Lateral Alert Limit; LAL
Vertical Alert Limit; VAL
[1,2] GBASGBAS
0.81m 95%CAT-I
4m [3] GBAS
3
Time to Alert TTACAT-I
SARPs LPL VPL DH Decision Height 40m 10m TTA
6 31
1-2 10 7
SARPsCAT-I 15
1-8 10-6
99 99.999%
3
3. GBAS
SAE Society of
Automotive Engineers, Inc.
[4, 5]
Functional Hazard Assessment; FHA
Preliminary System Safety Assessment; PSSA System Safety Assessment; SSA
PSSA SSAFault Tree Analysis; FTA
GBAS
IMT Integrity Monitor Testbed[6]GBAS
GBAS
H20
CAT-I GBAS
GBAS
3 1
GBAS
4. GBAS
RF
GPS
ICAO GPS3SARPs
TTA
GPS
[7]
5.
GBAS
2
GPS [8] GPS
SED Storm Enhanced Density
412 mm/km; 200311 20 [9] SARPs
GBAS
CCD Code-Carrier Divergence 2
Geometry Screening[9]
GBAS
28.8m [10]
10 15
[11]
2. GBAS
電子航法研究所研究発表会(第 10 回平成 22 年 6 月)
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4. GBAS
RF
GPS
ICAO GPS3SARPs
TTA
GPS
[7]
5.
GBAS
2
GPS [8] GPS
SED Storm Enhanced Density
412 mm/km; 200311 20 [9] SARPs
GBAS
CCD Code-Carrier Divergence 2
Geometry Screening[9]
GBAS
28.8m [10]
10 15
[11]
2. GBAS
電子航法研究所研究発表会(第 10 回平成 22 年 6 月)
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GPS
GPSGEONET
SED
CCD
VAL 10m
2DH
Ionospheric Field Monitor; IFM
SARPs 6.
H20GBAS CAT-I H21
IFM
[1] ICAO SARPs, ANNEX 10, 2006. [2] RTCA SC-159, RTCA/DO-246D, 2008. [3]
2006
[4] “Certification considerations for highly-integrated or complex aircraft systems”, SAE international, Warrendale, PA, Nov. 1996. [5] “Guidlines and methods for conducting the safety assessment process on civil airborne systems and equipment”, SAE international, Warrendale, PA, Dec. 1996. [6] Gang Xie, “Optimal on-airport monitoring of the integrity of GPS-based landing systems”, Ph.D. dissertation, Stanford University, Mar. 2004. [7]
GPS
No.123 2010 1 [8] J. Christie et al., “Analytical and Experimental Observations of Ionospheric and Tropospheric Decorrelation Effect for Differential Satellite Navigation during Precision Approach”, proc. of ION GPS-98, pp 739-747, 1998. [9] S. Ramakrishnan et al., “Targeted Ephemeris Decorrelation Parameter Inflation for Improved LAAS Availability during Severe Ionosphere Anomalies”, ION NTM 2008, Jan. 2008. [10] C. Shively et al., “Safety Concepts For Mitigation of Ionospheric Anomaly Errors in GBAS”, proc. of ION NTM 2008, pp.367-381, Jan. 2008. [11]
32000.
電子航法研究所研究発表会(第 10 回平成 22 年 6 月)
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