getting to grips with surveillance(25)

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- T2CAS combines Traffic Surveillance and Terrain Surveillance.
- T3CAS combines Aircraft Identification and Position Reporting, Traffic Surveillance, and Terrain Surveillance.
- AESS combines all the function above except the Runway Surveillance.

1.2.2. CHAPTER STRUCTURE
Each of the following chapters describes one of the six functions listed above. For an easy reading, all of the chapters apply the same structure as follows:
.  
Description of the system that fulfills the function described in the chapter.

.  
Operational recommendations for safe and efficient operations.

.  
Regulations in terms of carriage requirements at ICAO, EASA and FAA levels (for other areas, refer to local regulations).

.  
Manufacturers of systems that fulfill the function to identify the different available solutions.

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Future systems expected in the near future to improve the fulfillment of the function.

Each time several systems of fairly different technologies fulfill a given function, the description of each system follows the same structure. Therefore, it is easier to compare the systems.
At the end of each chapter, a summary provides the essential information: “Please bear in mind…”.
Note: The description of a system focuses on the basic principles. Consequently, a system is not exhaustively described. For instance, the Electronic Centralized Aircraft Monitoring (ECAM) alerts when a failure occurs are not described. The reader should refer to her/his Flight Crew Operating Manual (FCOM) when necessary.
1.2.3. CAPTIONS

 

An OPS+ flag identifies features that provide significant operational benefits.

Grey highlights identify interactive cross-references.

1.3. SYSTEM SUMMARY
The following table gives the functions and the related systems. The reader can click on the table to directly go to the corresponding page.
Click on a function or system name to jump to the appropriate page.
Air-to-Ground  Air-to-Air 
Function  A/CIdentification and Position Reporting TrafficSurveillance TerrainSurveillance WeatherSurveillance RunwaySurveillance 
Existingsystems  XPDR with Mode A, C or S  ACAS  TAWS  WX Radar1  RAAS 
XPDR with ADS-B  WX Radar with 3D buffer2 
Newsystems AP/FD TCAS  OANS 
ATSAW3  ROW/ ROP4 

Note: Some systems (i.e. T2CAS, T3CAS, AESS) combine different functions.
Refer to 1.2.1 – Surveillance Systems and Functions.
1 WX Radar takes into account Rockweel Collins Multiscan and Honeywell Autotilt.
2 The Rockwell Collins Multiscan weather radar and the AESS use a 3D buffer.
3 ATSAW is a module of some TCAS computer.
4 ROW/ROP is used in conjunction with OANS.

 

　
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