IS-GNSS 2014 Jeju, South Korea Oct. 22, 2014 MSAS Status Takeyasu Sakai Electronic Navigation Research Institute, Japan Takeyasu Sakai Electronic Navigation

IS-GNSS 2014IS-GNSS 2014Jeju, South KoreaJeju, South Korea

Oct. 22, 2014Oct. 22, 2014

MSAS StatusMSAS Status

Takeyasu SakaiElectronic Navigation Research Institute, Japan

Takeyasu SakaiElectronic Navigation Research Institute, Japan

IS-GNSS Oct. 2014IS-GNSS Oct. 2014 - Slide - Slide 22

ContentsContents

Current Status

MSAS User Segment & PBN

LPV Approach Trial

R&D for Performance Improvement


Current StatusCurrent Status MSAS: Japanese SBAS in operation.

– MTSAT Satellite-based Augmentation System.– Operational since Sept. 27, 2007.

• Test signal since summer 2005.

– Continue stable operation with 2 GEOs.

Service for Air Navigation– GPS Augmentation Information for RNAV, from En-route th

rough NPA (RNP 0.3). Within Fukuoka FIR. Horizontal navigation only due to ionosphere.

– NOTAM is available to MSAS users. Alert for Service Interruption. Alert for Predicted Service Outage.


ConfigurationConfiguration

• 2 GEO, 2 MCS (Master Control Station), 4 GMS (Ground Monitor Station), and 2 MRS;2 GEO, 2 MCS (Master Control Station), 4 GMS (Ground Monitor Station), and 2 MRS;• MCS also has GMS function; MSAS has 6 domestic monitor stations.MCS also has GMS function; MSAS has 6 domestic monitor stations.• 2 MRS (Monitor and Ranging Station) for GEO positioning for GEO ranging function.2 MRS (Monitor and Ranging Station) for GEO positioning for GEO ranging function.

Ranging Signals

MTSAT-1RGPS Satellites

GroundNetwork

Naha GMS

Fukuoka GMS

TokyoGMS

SapporoGMS

Hitachi-Ota MCS(and GMS)

Kobe MCS(and GMS)

Hawaii MRSAustralia MRS

Users

MTSAT-2

Augmentation Signals 6 GMS6 GMSin Japanin Japan

CanberraCanberraMRSMRS

HawaiiHawaiiMRSMRS

MSAS Monitor StationsMSAS Monitor Stations


MSAS GEO (MTSAT)MSAS GEO (MTSAT)

• 3-axis stabilized spacecraft with the standard bus system.3-axis stabilized spacecraft with the standard bus system.• Solar panel at the single side.Solar panel at the single side.

– Due to installation of equipment for the weather mission.Due to installation of equipment for the weather mission.• L-band transponder with the bandwidth of 2.2MHz.L-band transponder with the bandwidth of 2.2MHz.

– Uplink: Ku-band (13GHz) due to results of frequency coordination.Uplink: Ku-band (13GHz) due to results of frequency coordination.• Also has downlink channel in Ku-band.Also has downlink channel in Ku-band.

– For power control of uplink signal because of rain attenuation in Ku-band.For power control of uplink signal because of rain attenuation in Ku-band.

MTSAT-1R SpacecraftMTSAT-1R Spacecraft


MCS FacilitiesMCS Facilities

KASCKASC(Kobe Aeronautical Satellite Center)(Kobe Aeronautical Satellite Center)

HASCHASC(Hitachi-Ota Aeronautical Satellite Center)(Hitachi-Ota Aeronautical Satellite Center)

• Western part of JapanWestern part of Japan• MCS nominal for MTSAT-1R (PRN129)MCS nominal for MTSAT-1R (PRN129)• Backup for MTSAT-2 (PRN137)Backup for MTSAT-2 (PRN137)• Dishes for 2 GEO and emergency Dishes for 2 GEO and emergency

• Eastern part of JapanEastern part of Japan• MCS nominal for MTSAT-2 (PRN137)MCS nominal for MTSAT-2 (PRN137)• Backup for MTSAT-1R (PRN129)Backup for MTSAT-1R (PRN129)• Dishes for 2 GEODishes for 2 GEO


MTSAT CoverageMTSAT Coverage

(Fukuoka FIR)

FIR: Flight Information RegionFIR: Flight Information Region

MTSAT-1R @140EMTSAT-1R @140EMTSAT-2 @145EMTSAT-2 @145E


Performance of MSASPerformance of MSAS

GEONET 940058 (Takayama) 08/1/17-19GEONET 940058 (Takayama) 08/1/17-19PRN129 (MTSAT-1R) Broadcast SignalPRN129 (MTSAT-1R) Broadcast Signal

GPS onlyGPS only

w/ MSASw/ MSAS

HorizontalHorizontal0.425m RMS0.425m RMS

E-WE-W

N-SN-S

GPS onlyGPS only

w/ MSASw/ MSAS

VerticalVertical0.607m RMS0.607m RMS

E-WE-W

U-DU-D


Integrity PerformanceIntegrity Performance

From 2013/7/17From 2013/7/17To 2013/8/16To 2013/8/16 (1 month)(1 month)

MSAS PRN137MSAS PRN137Evaluated at:Evaluated at: HASC GME-AHASC GME-A

HAL=556m

Loss of Availability

NormalOperation

Loss ofAvailability& Integrity

Loss ofIntegrity

Loss ofIntegrity

Actual Error, mActual Error, m

Ho

rizo

nta

l Pro

tect

ion

Le

vel (

HP

L),

mH

ori

zon

tal P

rote

ctio

n L

eve

l (H

PL

), m

• Enroute to NPAEnroute to NPA• Extremely safe oExtremely safe o

perationperation


MSAS Users in AviationMSAS Users in Aviation

Regional Air carriers Regional Air carriers

Fire FightersFire Fighters

MedicalMedical

GovernmentGovernment


New Japanese Aircraft w/SBASNew Japanese Aircraft w/SBAS

• Mitsubishi Regional Jet (MRJ)– 70-90 seat

• Schedule: Now Assembly Work.– First flight is scheduled for 3Q

2015. – First delivery of MRJ is slated

for 3Q 2017.• Rockwell Collins ‘Pro Line Fusion’

has a LPV capability. • Purchase Agreement with

ANA 25 aircraft, JAL 32 aircraft, Trans States Holdings 100 aircraft, and SkyWest 200 aircraft.

Mitsubishi Regional Jet MRJMitsubishi Regional Jet MRJ


Implementation of RNP/RNAVImplementation of RNP/RNAV

TanegashimaYakushima

Izumo Oki

NiijimaKozushima

Fukui

●

●

●

●●

●

●

●

●

●●

●

●

●●

●●

Toyama

●

●

●●

●●

Okierabu

●●

●

●

●

●● ●

●●

●●

●

Chofu

Tarama

●

Amami

●

Shonai

●

Tokunoshima

Yoron

Akita

●

Kumamoto

●Miyazaki

●Tottori

●

●

Yamaguchi-Ube

New Chitose

Hakodate

Asahikawa

Kagoshima

Oita

Kita Kyushu

Nagasaki

●

●

KomatsuHiroshima

●Okayama

MihoIwakuni

KochiMatsuyama

Osaka

●

Tokushima

●

Niigata

●Oodate-noshiro

●●Sendai

Haneda

●Naha

Ishigaki Miyako

◆Narita

◆

Kansai

◆

Kobe

◆

◆

◆

◆

◆Fukuoka

◆

◆◆

◆

◆

◆

◆◆Chubu

Nagoya◆

◆

◆

◆

◆◆

◆

◆◆

Takamatsu

◆

◆

◆

◆ ◆

Southwestern Islands

● 　 RNAV Approach 　 17 　 airports

RNP Approach 　　 15 　 airports

Basic RNP 1 　 16 　 airports●

● 　 RNP AR Approach 12 　 airports

◆　 RNAV1 　　 30 airports

As of August 2014 (RNAV / RNP Approach 50 airports)


LPV Approach TrialLPV Approach Trial

Gulfstream-IVGulfstream-IVJA001G / JA002GJA001G / JA002G

SAAB 2000SAAB 2000JA003G / JA004GJA003G / JA004G

Bombardier BD-700Bombardier BD-700JA005G / JA006GJA005G / JA006G

Bombardier DHC-8-300Bombardier DHC-8-300JA007GJA007G

Flight Inspection Aircraft of JCABFlight Inspection Aircraft of JCAB

Upgraded FMS to support SBAS LPV approachUpgraded FMS to support SBAS LPV approach


DHC-8 Upgraded for LPVDHC-8 Upgraded for LPV

EADI

Announciator

EHSI

MLS=MSAS LandingSystem?

(They used I/F for MLS, micro-wave landing system)


Trial at Fukushima APTrial at Fukushima AP

LPV Approach Chart for Test Flight（ Fukushima Airport ）

On 16 July, 2010Test Flight at Fukushima

On 16 July, 2010Test Flight at Fukushima

LPV Announciator ONLPV Announciator ON

Start ApproachCaptain Side: LPVCo-Pilot Side: ILS

Start ApproachCaptain Side: LPVCo-Pilot Side: ILS

EADI/EHSI indicate same as ILSEADI/EHSI indicate same as ILS

Indicate ‘0.0NM’ over the runway threshold

Indicate ‘0.0NM’ over the runway threshold

HPL: 17.4m < HAL: 40mVPL: 31.3m < VAL: 50mGPS: 11 SV

Completed LPV ApproachCompleted LPV Approachwith MSAS !!with MSAS !!

Database for LPV App = ILS Overlayat Fukushima, Niigata, Kouchi, Miho.


Performance ImprovementPerformance Improvement

• Provide Vertical Guidance– APV-I (LPV) or hopefully CAT-I (LPV200) performance.

• Hardware and Software Upgrade – Addition of up to 10 Ground Monitor Stations.– Installation of new algorithm developed by the ENRI.

The current system uses the algorithm same as IOC WAAS.The algorithm should be improved to adapt to the Japanese

ionosphere conditions which are more severe than U.S. and mitigate ionosphere effect.

MotivationMotivation


Performance ImprovementPerformance ImprovementCurrent MSAS Enhanced MSAS

08/1/17 APV-I Availability6 GMS Planar Fit

08/1/17 LPV-200 Availability16 GMS + New Ionospheric Algorithm

• The simulation result showing possibilities to improve the performance of MSAS.


Near-Term Outlook: Current PlanNear-Term Outlook: Current PlanFY05

FY06

FY07

FY08

FY

09

FY

10

FY

11

FY

12

FY

13

FYFY

1414

FY

15

FY

16

FY

17

FY

18

FY

19

FY

20

FY

21

MTSAT-1R Operation

MTSAT-2 Operation

4-year life extension

Single satellite operation term

MSAS CommissionMSAS Commission

Decision Making YearFuture Future

Satellite Satellite SystemsSystems

• EoL of MTSAT-1R is forecasted as the end of 2014.• Expect the extension of EoL of MTSAT-2 for 4 years.• After EoL of MTSAT-1R, MSAS will be operated with 1 GEO.

– Both KASC and HASC will operate with MTSAT-2.• Discussion on a successor to MSAS is ongoing: Other GEO project…


ConclusionConclusion

• MSAS has been operational since Sept. 2007.MSAS has been operational since Sept. 2007.– An operational SBAS in accordance with ICAO standards.An operational SBAS in accordance with ICAO standards.– Stable operation with two GEOs and two MCSs.Stable operation with two GEOs and two MCSs.– Continue to serve with Enroute to NPA performance.Continue to serve with Enroute to NPA performance.

• MSAS GEO:MSAS GEO:– Currently operating withCurrently operating with

MTSAT-1R/MTSAT-2 GEOs.MTSAT-1R/MTSAT-2 GEOs.– End of life of the 2End of life of the 2ndnd GEO is GEO is

extended, but in 2020.extended, but in 2020.– Currently discussingCurrently discussing

the plan beyond 2020.the plan beyond 2020.

• Contact: [email protected]: [email protected]

Documents

IS-GNSS 2014 Jeju, South Korea Oct. 22, 2014 MSAS Status Takeyasu Sakai Electronic Navigation Research Institute, Japan Takeyasu Sakai Electronic Navigation