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2009 Annual Report - RTCA

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for FIS and AIS functions that support the global<br />

aeronautical information management concept.<br />

SC-205, Software Considerations is developing<br />

updates to three documents: DO-178B,<br />

DO-248B, and DO-278. These updates will<br />

continue the current objective-based approach<br />

and technology-independent nature of software<br />

assurance for the continued safe implementation<br />

of aeronautical software. The updated documents<br />

will consolidate software development<br />

guidance and guidelines to provide clear and<br />

consistent ties with the systems and safety processes,<br />

address emerging software trends and<br />

technologies, and implement a process that can<br />

change with the technology. SC-205 is expected<br />

to complete its work in early 2011.<br />

SC-203, Unmanned Aircraft Systems (UAS)<br />

is developing standards, certification criteria, and<br />

procedures for sense and avoid systems as well<br />

as protocols to be used for the certification of<br />

command, control, and communication systems<br />

in the defined flight environment. Many federal<br />

agencies and commercial operators are currently<br />

operating or seeking authority to operate UAS<br />

in the National Airspace System (NAS). SC-203<br />

products will help assure the safe, efficient, and<br />

compatible operation of UAS with other vehicles<br />

operating within the NAS.<br />

SC-186, Automatic Dependent Surveillance-Broadcast<br />

(ADS-B) is developing<br />

operational requirements and minimum performance<br />

standards for airborne and ground<br />

user applications of ADS-B. Over 70 ADS-B<br />

operational capabilities have been identified<br />

that could provide enhanced safety, increased<br />

capacity, and improved efficiency. In <strong>2009</strong>, four<br />

<strong>RTCA</strong> documents (DO-260B, DO-282B, DO-317,<br />

and DO-318) related to Automatic Dependent<br />

Surveillance-Broadcast (ADS-B) applications<br />

were published. The publication of DO-260B<br />

and DO-282B was particularly significant because<br />

the FAA issued a Technical Standard Order<br />

referencing these documents the day they were<br />

approved.<br />

SC-159, Global Positioning System (GPS)<br />

is developing minimum standards that form the<br />

basis for FAA approval of equipment using GPS<br />

as a primary means of civil aircraft navigation.<br />

In <strong>2009</strong>, SC-159 completed work on DO-316,<br />

which provides recommended MOPS for singlefrequency<br />

airborne navigation sensor equipment<br />

not augmented by ground or space-based<br />

systems. DO-316 reflects absence of Selective<br />

Availability (SA), updated RAIM (Receiver Autonomous<br />

Integrity Monitoring), and an updated<br />

signal interference environment.<br />

SC-147, Traffic Alert & Collision Avoidance<br />

System (TCAS) has defined and updated the<br />

TCAS and TCAS II performance standards, thereby<br />

contributing to one of the most significant advances<br />

in aviation safety in the past twenty years.<br />

In <strong>2009</strong>, two publications (DO-300 Change 1 and<br />

DO-185B Change 1) provide updated recommended<br />

requirements for the Traffic Alert and<br />

Collision Avoidance Systems II (TCAS II) related<br />

to the TCAS II hybrid surveillance capability and<br />

other performance updates.<br />

SC-135 Environmental Testing is continuing<br />

to maintain and update <strong>RTCA</strong> DO-160,<br />

Environmental Conditions and Test Procedures<br />

for Airborne Equipment. This document is the<br />

international de facto standard for environmental<br />

testing of commercial avionics and provides a<br />

laboratory means to determine the performance<br />

characteristics of airborne equipment.<br />

<strong>2009</strong> <strong>Annual</strong> <strong>Report</strong> • <strong>RTCA</strong><br />

11

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