British Standards Institution

Source:: IEC
Committee:: EPL/103 - (Disbanded 01.03.2022 See W/-) Transmitting equipment for radio communication
Categories:: Information management | Standardization. General rules | ICT | Telecommunications. Audio and video engineering | Radiocommunications | Receiving and transmitting

Scope

This International Standard provides the technical specifications of the RoF interface of optical-fibre-conneted multilateraion to connect between the central processers and the remote antenna units. It also provides useful technical specifications for power delivery through the fibre.

Purpose

1090MHz transponder is widely used for aircraft all over the world. To enhance aircraft surveillance capabilities, multilateration (MLAT) are utilized for this purpose. MLAT is a aircraft surveillance system based on the principle of hyperbolic positioning, using signals transmitted from transponders installed on the aircraft. Optically connected multilateration utilizes radio over fibre (RoF) to collect the signal from aircraft to obtain the actual waveforms at the multiple remote antenna unit (RAU) receivers. The system calculates the aircraft positions according to the Time Difference of Arrival (TDOA) of signals at the RAU receivers. RoF technologies are quite important to design the whole system and calibrate the system.

Optically connected multilateration has the multiple RAUs for signal reception and transmission in airport, those utilize RoF connections. The purpose of this international standard to propose the technical specifications of optical connection to ensure the connectivity between the RAUs and the central processors. These specifications ensure the interoperability of RAUs produced by various manufacturers.

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Please email further comments to: debbie.stead@bsigroup.com

Standard timeline

1. Proposal

Proposal start date:

01/02/2022

Proposal end date:

20/03/2022

2. Draft

3. Public Comments

4. Comment Resolution

5. Approval

6. Publication

Learn more about the standards development process

Standards Development

103/233/NP PNW 103-233 ED1 Transmitting and receiving equipment for radiocommunication - Radio-over-fibre technologies and their performance standard - Part 5 Airport multilateration system

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