Minimum Aviation System Performance Standards for Aircraft ...

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38 2.2.2.1 Operational Scenario (Parallel Runway Monitoring) 2.2.2.2 Requirements © 20xx, RTCA, Inc. A specific example of conformance monitoring is PRM and simultaneous approach, a surveillance and automation capability that enables a reduction in minimum runway spacing for independent approaches to parallel runways in IMC. All aircraft participating in a given parallel approach should be ADS-B equipped. Initial use of ADS-B for PRM could be achieved before full equipage by limiting access to parallel approaches at specified airports only to ADS-B equipped aircraft. This may not be practical until a significant number of aircraft are equipped with ADS-B. When sufficient aircraft are equipped for ADS-B, an evolution to the full use of ADS-B to support PRM can occur. At that time, radar-based PRM system would no longer be needed. See Table 2-6 for information exchange needs and see Table 2-9(a) and Table 2-9(b) for operational performance needs to support ATS parallel runway conformance monitoring.
3 ADS-B and Airborne Systems Definition and Performance Requirements This section defines, within the context of ASA operational applications, the ADS-B System and its functional and performance requirements. The system description and user equipage classifications are summarized in Section 3.1. The broadcast information element requirements are given in Section 3.2. System application requirements are given in Section 3.3. Subsystem requirements are stated in Section 3.4, and ADS-B output report characteristics supporting application needs are described in Section 3.5. 3.1 System Descriptions 3.1.1 ADS-B Subsystem Description (Transmit and Receive) This section describes the ADS-B system, provides examples of ADS-B system architectures, and defines ADS-B equipage classes. 3.1.1.1 Context Level Description 3.1.1.1.1 System Level Context diagrams, which are data flow diagrams at successive levels of system detail, are used to define information exchanges across system elements and indicate how required functions are partitioned. The following subsections present context diagrams for ADS-B at three successive levels of detail: (1) the ADS-B system level, (2) subsystem level, and (3) functional level. ADS-B system level information exchange capabilities are illustrated in the top-level context diagram of Figure 3-1. As depicted in this and subsequent figures, four symbols are used to define data flows in context diagrams: Entities external to the ADS-B System are identified by rectangles Data flows are labeled lines with directional arrowheads Processes are defined by circles Data storage or delays are indicated by parallel lines. Information flows into or out of any context layer must be consistent with those identified at the next layer. The ADS-B system level includes ADS-B subsystems supporting each participant and the means necessary for them to exchange messages over the broadcast medium. The ADS- B system accepts own-ship source data from each of N aircraft/vehicle interactive participants, B aircraft/vehicle broadcast-only participants, and G fixed ground broadcastonly participants, and makes it available through the RF medium to each of the other N interactive participants as well as R receive-only ground sites. Interactive ground facilities may also exist in some ADS-B systems. © 20xx, RTCA, Inc. 39
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Page 3 and 4: FOREWORD This document was prepared
Page 5 and 6: TABLE OF CONTENTS 1 PURPOSE AND SCO
Page 7 and 8: 3.2.25 Status of MCP/FCU Mode Bits
Page 9 and 10: APPENDICES Appendix A Acronyms and
Page 11 and 12: Table 3.4.3.1b: Interoperability Ra
Page 13 and 14: 1 PURPOSE AND SCOPE 1.1 Introductio
Page 15 and 16: � Enabling aircraft in oceanic ai
Page 17 and 18: is minimizing the latency between t
Page 19 and 20: uses of TCAS and ASA, and in partic
Page 21 and 22: provision is still the controller's
Page 23 and 24: The ADS-B system scope is the middl
Page 25 and 26: 2 Operational Requirements 2.1 Gene
Page 27 and 28: The following subsections describe
Page 29 and 30: Airborne Situational Awareness (AIR
Page 31 and 32: Notes for Table 2-7: 1. The airborn
Page 33 and 34: Notes for Table 2-8: 1. System must
Page 35 and 36: this new distance-based longitudina
Page 37 and 38: � Mechanisms for aircraft-aircraf
Page 39 and 40: the lead and other proximate aircra
Page 41 and 42: environment there is a need to supp
Page 43 and 44: Operational Scenarios Blind Taxi: T
Page 45 and 46: Table 2-9(b): Additional Expected C
Page 47 and 48: Scenario � NRA - 5 NM EnRoute Tab
Page 49: Aircraft type classification, statu
Page 53 and 54: Participant - N Participant - 2 Par
Page 55 and 56: ADS-B Message Generation Function A
Page 57 and 58: certification process. The distribu
Page 59 and 60: own-aircraft’s air crew). This eq
Page 61 and 62: Class C2: Ground ATS Receive-Only A
Page 63 and 64: 3.1.3 CDTI Subsystem Description Th
Page 65 and 66: . Approach Control Service 2. Fligh
Page 67 and 68: 3.1.4.2.1 ADS-R Service Figure 3-8:
Page 69 and 70: USER AIR INTERFACE ADS-B MESSAGES R
Page 71 and 72: 3.1.4.2.1.4 ADS-R in Enroute and Te
Page 73 and 74: TIS‐B Non‐Equipped UAT FIS‐B
Page 75 and 76: available for a Mode S track (typic
Page 77 and 78: Three squitters (even position, odd
Page 79 and 80: TIS-B Message Encoding Used Based o
Page 81 and 82: The TIS-B/ADS-R Service Status mess
Page 83 and 84: 3.1.4.3.1.2.2 TIS-B Position Update
Page 85 and 86: UAT transmissions shall be randomiz
Page 87 and 88: The nominal message transmission ra
Page 89 and 90: UAT transmissions shall be randomiz
Page 91 and 92: aircraft/vehicle addresses shall {2
Page 93 and 94: 3.2.2.4 Mode 3/A Code Since the Mod
Page 95 and 96: Table 3.2.4.1a: Dimensions of Defin
Page 97 and 98: 3.2.4.2 Altitude means to indicate
Page 99 and 100: 3.2.7 Heading 4. Pure barometric ra
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3.2.8.6 UAT Receive Capability The
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SDA Value (decimal) (binary) 0 00 T
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Table 3.2.9.6B: Longitudinal Axis G
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It is recommended that the coded re
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Table 3.2.12a: Navigation Accuracy
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3.2.16 Geometric Vertical Accuracy
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101 of the airplane during certain
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3.2.24 Selected Heading Field a. Th
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105 a. The ADS-B Transmitting Subsy
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Figure 3-15: End to End ASA System
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3.3.1.2.2 Interface A2 3.3.1.2.3 In
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111 The CDTI function may translate
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113 The update interval of ADS-R or
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data extrapolated to a common time
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Source Info Category Information El
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If the ASSAP determines that multip
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121 The operating range of display
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3.4.2.9 Multi-Function Display (MFD
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3.4.3 Subsystem Requirements for AD
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Table 3.4.3.1b: Interoperability Ra
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Equipage Class � B0 Aircraft R�
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Table 3.4.3.3.1.1a shows accuracy v
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2. The analysis in RTCA DO-242A, Ap
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2. The 90 NM range requirement appl
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Table 3.4.3.3.1.3a: Summary of TS R
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Instaneous air count 800 700 600 50
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Growth Factor GNY( ma �� ) ( 1
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Where the ADS-B System is used as a
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eliability required for the intende
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its component information is receiv
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c. Lighter Than Air d. Unmanned Aer
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. ADS-B participants that are known
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3.5.1.3.6 Geometric Altitude Field
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3. For operations at some airports,
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MS Elem. # Table 3.5.1.4: Mode Stat
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3.5.1.4.5 Emitter Category Field An
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3.5.1.4.11 Navigation Accuracy Cate
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3.5.1.6 Air Referenced Velocity (AR
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3.5.1.6.7 Heading Valid Field The
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3.5.1.7.9 MCP/FCU Mode Indicator: V
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alternate position sources may not
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3.6.4 TCAS The heading data will in
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3.6.5.3 Reference Datum The airport
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application-unique processing and d
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Figure 4-2: Example for SURF IA Ind
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Appendix A Page A-2 ©20xx, RTCA, I
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Appendix A Page A-8 A.2 Definitions
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Appendix A Page A-10 Air/Ground Sta
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Appendix A Page A-12 Collision Avoi
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Appendix A Page A-14 Extended Displ
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Appendix A Page A-16 Latency Compen
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Appendix A Page A-18 Regime - Divis
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Appendix A Page A-20 Target State R
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Appendix A Page A-22 DO-3xx Reqmts
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Appendix A Page A-24 DO-3xx Reqmts
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Appendix B Page B-2 [15] RTCA, Traf
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Appendix B Page B-4 [44] RTCA, Safe
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C Derivation of Link Quality Requir
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C.3.4 Altitude Accuracy The fundame
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Appendix F Page F-2 F.1.2 ADS-B Tra
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Appendix F Page F-4 F.2.2 Design Al
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Appendix F Page F-6 F.3.2 Performan
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Appendix F Page F-8 © 20xx RTCA, I
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Appendix F Page F-10 © 20xx RTCA,
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Appendix F Page F-12 1 0.9 0.8 0.7
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Appendix F Page F-14 © 20xx RTCA,
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Appendix G Page G-2 North Position
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Appendix G Page G-4 ARV information
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Appendix G Page G-6 � 20xx, RTCA,
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