What are the specific meanings of new navigation technologies such as PBN, EFB, CPDLC and ADS-B?

The traditional route is based on the location of ground navigation facilities, connecting all navigation points one by one, and relying on the radio signals of navigation stations to ensure that the aircraft can fly to the navigation points. However, PBN navigation technology does not depend on ground navigation equipment, and can make the aircraft fly accurately between any two points. This reduces fuel consumption, airport and airspace congestion and greenhouse gas emissions from aircraft. Performance-based navigation PBN is helpful to further improve the safety, efficiency and sustainability of the global air transport system. The "Next Generation Air Transport System" in the United States and the "Research on Single European Sky Air Traffic Management" in Europe are both performance-based navigation.

EFB

Electronic Flight Bag System is a new concept in aviation field, and it is a pilot's flight assistant tool. FAA advisory circular AC 120-76a defines electronic flight bag as (Par 5, Page 2, 3/ 17/03): in the cockpit/the simplest portable EFB can be compatible with personal digital assistant (PDA), and can be used to display various navigation data, perform calculations and inspections in preparation for various flight stages, or perform some basic calculations.

CPDLC pilot data communication technology

Ads-b1March, 1992, FAA entrusted Lincoln Laboratory of Massachusetts Institute of Technology to demonstrate the application of S-mode data link, and suggested that S-mode long-form spontaneous report (Squitter) be used to broadcast the GPS position of aircraft.1April, 1993, DGPS correction data should be broadcast omni-directionally. The whole system is called "GPS spontaneous report" (GPSSquitter), and the core problem is the utilization of S-mode communication function. Its airborne equipment is the S-mode transponder already equipped on the original plane, and it can send a long format (1 12 bits) spontaneous report (three-level function) only by simple modification. Its ground equipment does not need to use secondary radar, but only needs S-mode communication function. According to the purpose, it is divided into three types, namely, aircraft with a voyage of 3 nautical miles.

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