Data Sources for NTK System
Input data sources for NTK system
The figure below shows the sources of data feeding into the NTK system:
- the airports’ Flight Information Systems (FIS) provide details of the aircraft;
- radar data (filtered and processed by NATS) give positional information; and
- noise data come from arrays of fixed and portable monitors.
ANOMS matches all the different data sources together into a single database, and enables users to query and output almost any required information, with the addition of Ordnance Survey maps. The ERCD system accesses the same data as the Heathrow, Gatwick and Stansted airport systems.
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GLOSSARY | |
| ANOMS | Aircraft Noise and Operations Monitoring System (supplied by Brüel & Kjær) |
| BUCHAir | Proprietary database of aircraft details |
| CCDS | Code to Callsign Data conversion System |
| CDA | Continuous Descent Approach |
| FIS | Flight Information System |
| METAR | Source of comprehensive meteorological data for appropriate airfield |
| NNQ | Night Noise Quota |
| QNH adjustment | Adjustment from aircraft altitude above sea level to height above airport elevation |
| RDPFS | Radar Data Processing and Filtering System |
| t, x, y, h | Time (t), aircraft position (x,y) and height data (h) |
| WebTrak | Internet-based view of NTK data at Heathrow, Gatwick, Stansted |
