Please wait, while we are loading the content...
Please wait, while we are loading the content...
Content Provider | IEEE Xplore Digital Library |
---|---|
Author | Box, F. Long, P. |
Copyright Year | 2000 |
Description | Author affiliation: Center for Adv. Aviation Syst. Dev., MITRE Corp., McLean, VA, USA (Box, F.) |
Abstract | The Federal Aviation Administration (FAA) plans to upgrade the air/ground (A/G) radio system that it uses for air traffic control (ATC). The Next-Generation A/G Radio Communications System (NEXCOM) will use the VKF Digital Link Mode 3 (VDL3) to provide a voice and data capability. The nationwide transition from today's analog voice system to NEXCOM will take several years. Since VDL3 interference characteristics differ from those of analog radios, nearly every A/G circuit at the time of its conversion to NEXCOM will need to change its operating frequency to avoid interference with neighboring circuits. A step-by-step frequency plan is needed. The MITRE Corporation's Center for Advanced Aviation System Development (CAASD) has developed an automated simulation model that facilitates spectrum planning for the transition. The model incorporates all applicable frequency assignment rules. It has the crucial ability to simulate "neighbor-repacking"-selective changes to the frequency assignments of neighboring circuits when necessary to create spectral room for circuits being converted to NEXCOM. Using this model, CAASD has developed strawman frequency plans for a wide variety of transition scenarios. This paper describes the model and presents our key simulation results. We demonstrate that a nondisruptive incremental transition is feasible but will require widespread neighbor-repacking. We also show that starting the transition as soon as possible, and giving NEXCOM circuits access to as many frequencies as possible in the "new" 136136.475 MHz subband as well as the previously available frequencies below 136 MHz, will reduce the complexity of the transition and thus tend to minimize its overall cost. |
File Size | 656917 |
File Format | |
ISBN | 0780363957 |
DOI | 10.1109/DASC.2000.884928 |
Language | English |
Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Publisher Date | 2000-10-07 |
Publisher Place | USA |
Access Restriction | Subscribed |
Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subject Keyword | Air traffic control Radiofrequency interference Aircraft Aerospace control VHF circuits FAA Circuit simulation Frequency conversion Radio control Communication system control |
Content Type | Text |
Resource Type | Article |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
Sl. | Authority | Responsibilities | Communication Details |
---|---|---|---|
1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
Loading...
|