Document Type : Scientific extension


1 M.Sc., CMS. Department at Mehrabad International Airport. Tehran. Iran.

2 B.Sc .Student, Aviation Electronics, Civi Aviation Technology College.Tehran. Iran

3 Assistant Professor, Aviation Electronics Civil Aviation Technology College. Tehran. Iran


Today, all world's aviation organizations, including ICAO, are looking for solutions to airspace shortage, growth of global air traffic, and safety of flights. Performance based navigation (PBN), which is a transition from System-Base to Performance-Base Navigation is a solution that can improve the problems caused by an increase in the number of flights and complexity of air routes. PBN flight plans are implemented through RNP and RNAV. To use these designs, FMS receivers have several input sensors. The most important GNSS input sensor continuously supports PBN operations. However, GNSS services are disable due to atmospheric effects and human-made noise. This paper discusses the opportunities and challenges associated with use of DME as an alternative source for positioning, navigation, and timing (PNT) in the absence of GNSS services.


[1]     Hamidzade delarzi, Z., "Doing Revision of the Modern FMS Navigation System and Analysis of Its Input Sensors", B.Sc. Thesis, CATC, 2019 (In Persain).
[2]     ICAO, “Annex 10, Chapter 3, Volum 1”, 2009.
[3]     Lufthansa Technical Training GmbH, “Training Manual A319 / 320 / 321- ATA 34 Navigation Radio Navigation”, 2001.
[4]     ATR Training Centre, “TRAINING HANDOUT T1 42-400I500 and 72-212A (600 VARIANT) -ATA 34 NAVIGATION”, 2015.
[5]     ICAO, DOC 9849, Global Navigation Satellite System (GNSS) Manual, 2nd Edition, 2013.
[6]     ICAO, “DOC 9613, Performance-based Navigation (PBN) Manual”, 4th Edition, 2013.
[7]     Engineering and Maintenance Training Department, “FMS Training Manual”, 2014.
[8]     Lufthansa Technical Training GmbH, “Training Manual A319 / 320 / 321-ATA 22 Autoflight”,1999.
[9]     ATR Training Centre, “TRAINING HANDOUT T1 42-400I500 and 72-212A (600 VARIANT) - ATA 22 AUTO FLIGHT CONTROL SYSTEM”, 2015.
[10]  Eurocontrol, “Guidance Material for P-RNAV Infrastructure Assessment”, Vol. 1, No. 2, pp. 11-32, 2008.
[11]  ICAO, “DOC 8168, Part III, Section1, Chapter 3, Volum 2”, 2008, pp. 567-575
[12]  ICAO, “DOC8168, Part II, Section 3, Chapter 2, Volum 1”, pp. 247-248, 2006.
[13] Nikhil Verma, Md Rejwanul Haque, “DME-DME Network and Future Air Traffic Capacity”, Journal of Modern Science and Technology, Vol. 1, No. 1, pp.45-51, 2013.