Upload
bhagyashree-borekar
View
222
Download
0
Tags:
Embed Size (px)
DESCRIPTION
New technology that is redefining the paradigm of COMMUNICATIONS -NAVIGATION -SURVEILLANCE in Air Traffic Management today. Automatic – No interrogation by external system, and no pilot input required Dependent – Position and velocity vector based on own ship’s navigation, typically from Global Positioning System (GPS) Surveillance – Provides aircraft position and type, altitude, velocity vector, call sign Broadcast – Data transmitted to any/all ground and airborne receivers
Citation preview
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
1/24
Presented by
Bhagyashree S.BorekarRoll No.-8102
Challenges of Next GenerationAir Traffic Management:
The Case of ADS-B
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
2/24
Contents
1. Motivation
2. Scope
. !ntrod"ction
#. $o%parison
&. Principle o' ()S-B
*. $"rrent Scenario
+. $hallenges ,aced
8. Re'erences
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
3/24
Motivation
o s"ccess'"lly handle groing air tra''ic/ avoid accidents and
collisions and to i%prove the sa'ety o' billions o' '"t"re
passengers/ net generation air tra''ic %anage%ent syste%s
are cr"cial.
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
4/24
Scope
St"dy o' (ir ra''ic Manage%ent ith ()S-B syste%.
nderstanding o' the c"rrent state o' the 100 M34 co%%"nication
channel and its behavior "nder the increasing tra''ic load.
$hallenges 'ace by ()S-B.
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
5/24
What is ADS-B??
Ne technology that is rede'ining the paradig% o' $5MMN!$(!5NS
-N(6!7(!5N -SR6!99(N$ in (ir ra''ic Manage%ent today.
Atomatic : No interrogation by eternal syste%/ and no pilot
inp"t re;"ired
Depen!ent : Position and velocity vector based on on ship
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
6/24
"rinciple of ADS-B
$o%bine satellite-based positioning ith a radio 're;"ency =R,>
data-link to contin"o"sly and a"to%atically broadcast location
"pdates and intents
here are to co%peting ()S-B data link standards that have been
proposed@
1. niversal (ccess ransceiver =(>
- +8M34 're;"ency
- speci'ically 'or "se ith aviation services- operates belo 18/000 'eets
2. tended S;"itter
- 100M34
- $o%%ercial aircra't
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
7/24
Tra!itional Approach
-Based on R()(R
"rimar# Srveillance $a!ars %"S$&
- independent and they do not re;"ire cooperation 'ro% the air-cra't.
-
trans%it high-'re;"ency signals/ hich are re'lected by the target.
Secon!ar# Srveillance $a!ars %SS$&
- dependant on transponders in the aircra't
- transponders respond to interrogations 'ro% gro"nd stations.
'imitation@- Relatively lo precision and detection acc"racy
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
8/24
ADS-B Coverage
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
9/24
GetPosition
FromGNSS
GNSS
ADS-B
OUT
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
10/24
ADS-B Avionics Mo!e
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
11/24
()S-B (vionics operating %odes
()S-B 5"t@ he trans%ission o' ()S-B in'or%ation 'ro% aircra't
()S-B !N @ he receipt o' ()S-B in'or%ation by an aircra't
he %ai%"% range beteen the trans%itting and receiving
airplanes is greater than 100 na"tical %iles =n%i>/ alloing the
$)! to display tra''ic both near and 'ar.
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
12/24
Comparison of Civil Aviation Transpon!er mo!es
Message
length
Frequenci
es(MHz)
Operation
al mode
Use case
TechnicalStandards
Mode A 12 bit 1030 (up)1090
(down)
Independent/
Non-see!ti"e
interro#$tion
Identi%!$tion &S'- * b
Mode + 12 bit 1030 (up)1090
(down)
Independent/
Non-
see!ti"einterro#$tion
PressureAtitude,tr$!tion
&S'- * !
Mode ./112 bit 1030 (up)1090
(down)
Independent/
See!ti"e
interro#$tion
Mutipe&S'-112b
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
13/24
Comparison of Data 'in(s
Mo!e S )xten!e!
S*itter +,,)S
.niversal Access
Transceiver %.AT&
,re;"ency 100 M34 +8 M34
,re;"encyShared ith
$(S/ Pri%ary R()(R/!S-B/()S-R
,!S-B/ !S-B/ ()S-R
!ntended ser (ir ransport/ 3igh nd7eneral (viation
7eneral (viation
echnical Standard )5-2*0B/ as o"tlined inS5-1**b
)5-282B/ as o"tlined inS5-1c
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
14/24
Bloc( Diagram
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
15/24
+,, )xten!e! S*itter Message /ormat
Synchroni4ation
n
!ndicates the type o'%essage
$o%%"nication capability
S"rveillance data =e.g./ identi'ication/position/ velocity/ "rgency code and
;"ality level
( trans%ission error in a
received %essage.
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
16/24
Benefits
More acc"rate and consistent
$apacity i%prove%ent
S"rveillance is easier and less epensive
Capacit#
A More aircra't 'ly sa'ely at sa%e ti%e
A Signi'icant increase in Non-radar airspace ro"te density
A More e''icient "se o' r"nays 'or takeo''s and landings
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
17/24
)fficienc#
A (ircra't can 'ly closer together
A !%ple%entation is rapid and lo cost
A ()S-B can be scaled and adapted
A Red"ced costs per passenger
Safet#
A6astly i%proved sit"ational aareness
A Precise position velocity is broadcast
A Real-ti%e data is broadcast
A (ll "sers see sa%e data
A (ir and gro"nd tra''ic visible
A ra''ic %onitoring in Non-radar airspace
A R"nay inc"rsion aareness
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
18/24
9ive screenshot o' 5penSky reception over $entral "rope.
Case St!#: 0pen S(#
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
19/24
Case St!#: 0pen S(#
0nline since 1+2,+23,+1
(rea +20/000 k%2
Sensors
SBS- stations 'ro% Cinetic (vionics
11
Received %essages D #/&00/000/000
,lights per day +/&00
)i''erent aircra't 1/000
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
20/24
Challenges /ace!
1. S"sceptible to severe %essage collisions in dense air spaces.
2. R, attacks ith cheap o''-the-shel' so'tare-de'ined radios.
. !nEect 'alse aircra't positions.
#. nencrypted ()S-B %essages.
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
21/24
References
1. Martin Stroh%eier et. al./ FRealities and $hallenges o' Net7en (ir ra''ic
Manage%ent@ he $ase o' ()S-B, IEEE Communications Magazine /May
201#
2. $. Rekkas and M. Rees/ Foards ()S-B i%ple%entation in "rope/G !
yrrhenian !nt/ / Sept. 2008
. ("to%atic )ependent S"rveillance : Broadcast =()SB>/Air Traffic
Management CircularNo. 2 o' 2012
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
22/24
#. Matthias Scha'er et. al./ FBringing "p 5penSky@( 9arge-scale ()S-B
Sensor Netork 'or ResearchG/ ACM/IEEE Intl. Conf. Information
Processing in Sensor Networs !IPSN" / (pr. 201#.
&. ("to%atic )ependent S"rveillance : Broadcast =(ds-b> 5"t Based (S
S"rveillance Services / ,ile No. ((!?(M?(!S?0-0?201#
*. Steve Podradchik/ F( pilot
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
23/24
$eferences Cont!44
+. Hillia% R. Richards et. al./ FNe (ir ra''ic S"rveillance echnologyG/
Aero %uarterl$ %T*J 02 /pg +-1
8. .ads-b.co%
. .trig-avionics.co%
10. ). Mc$allie/ K. B"tts/ and R. Mills/ FSec"rity (nalysis o' the ()S-B
!%ple%entation in the Net 7eneration (ir ransportation Syste%,
Intl. +. Critical Infrastructure Protection !I+CIP", vol. #/ no. 2/ ("g.
2011/ pp. +8:8+.
5/18/2018 next Gen Air traffic mamnagement system:the case of ads-b
24/24
&$n 4ou5555
http://www.trig-avionics.com/http://www.ads-b.com/