Theme: | Communication/Propagation |
Application: | Vessel traffic systems |
Contact Person: | |
External collabolator: | Saab Technologies |
Intorduction: | Saab Technologies develop, produce and implement vessel traffic systems (VTS) for customers all over the world. One of the technologies used to create situational awareness and also to communicate between vessels is AIS (automatic identification system). Saab is a global leader in AIS technology and produces a range of stationary and mobile AIS equipment. AIS is an automatic tracking system that uses transceivers on ships and/or shore based positions. Information provided by AIS equipment, such as unique identification, position, course, and speed, can be displayed on a screen or an electronic chart display and information system (ECDIS) and be used to trigger alarms. AIS can also transmit (small) text messages. AIS uses radio transmissions in the marine VHF radio band in the frequency range between 156 and 174 MHz. Marine voice communications and digital selective calling (DSC) use the same marine VHF radio band. Good reception of VHF transmissions is key to successful AIS operation. |
Description: | This project can be an internship, Bachelor or Master project. It aims to investigate the following problem: "What would be the optimal antenna configuration to provide full radio coverage in tower mounted VHF systems?" The investigation may look into (amongst other things): - antenna types - number of antennas deployed - position of the antenna(s) - any other constraints or variables Special attention in the investigation must be given to undesired effects that may be experienced when using multiple antennas, like for instance: - interference of antenna radiation patters (near field and far field); - adverse effects in cabling and splitters like dampening, resonance and interference; - adverse phase effects when received signals are fed into an AIS base station. |
Requirements: | Required qualifications - Bachelor or master technical study - Ability to communicate in Dutch and English - Analytical thinking, pro-active, passionate, flexible and creative |
Additional Info: |
