MULTIPATH IN AIR TRAFFIC CONTROL FREQUENCY BANDS. VOLUME I. CLASSIFICATION OF MULTIPATH, EFFECTS OF MULTIPATH ON SYSTEMS, AND CAUSES OF MULTIPATH
The handbook has collected theories and techniques which have one or more of the following qualities: It has been in frequent use by engineers; it has been shown to be accurate; it can be applied to a wide variety of problems; it offers an easily obtainable upper or lower bound. Most of the problems arising because of multipath cannot be solved or described precisely, but instead involve assumptions or approximations, the effects of which cannot be quantified. The responsibility for the decision on which approximation or assumption to use for a particular problem is with the reader. Since the handbook is directed toward air traffic control (ATC) frequencies, most of the material presented is oriented toward frequencies above VHF, and toward line-of-sight paths. Two special sections, one on Omega and one on Loran are included. No information on HF propagation or ionospheric scatter is included. Finally, selection of the material in this handbook has been heavily influenced by the systems presently used by the FAA.
- See also Volume 2, AD/A-006 268.
Institute for Telecommunication SciencesDepartment of Commerce
Boulder, CO United States 80302
Washington, DC United States
- HARTMAN, W J
- Publication Date: 1974-7
- Pagination: 300 p.
- TRT Terms: Air traffic control; Bandwidth; Frequency (Electromagnetism); Line of sight; Loran; Microwaves; Multipath transmission; Omega navigation system; Ultrahigh frequency; Very high frequency
- Uncontrolled Terms: Attenuation
- Old TRIS Terms: Fading electromagnetic waves; Loran system; Microwave frequency; Omega standard frequency; Ultrahigh frequencies
- Subject Areas: Aviation; Operations and Traffic Management;
- Accession Number: 00090314
- Record Type: Publication
- Source Agency: National Technical Information Service
- Contract Numbers: DOT-FA72WAI-239
- Files: NTIS, TRIS, USDOT
- Created Date: Apr 22 1975 12:00AM