Conference Agenda

MAST Northern Coasts 2019 Bella Center, Copenhagen, Denmark

Thu 5 Sep 2019

13:30 Thu 5 Sep 2019


4A: Surface


CHAIR: Captain (ret) Bo Wallander

HF Networks for Safe Operation in the North Atlantic and Arctic Region

  • Mr. Phillipp Specht
    Product Manager
    Rohde & Schwarz

Relevance of HF data services as a Backup to SATCOM has increased significantly in Maritime Beyond Line of Sight (BLoS) communications. Especially while operating in the North Atlantic and Arctic Exclusive Economic Zones, navies face the challenge of poor satellite coverage. An important point in the joint and combined navies operation is the Broadcast and Ship Shore infrastructure (BRASS). Therefore, NATO Communications and Information Agency (NCIA) and the Maritime Interoperability Working Group (MIWG) is pushing development of enhancements to the current HF services. As of today teletype (ACP-127) based communications are still used as common standard. The next step is to support E-mail style messaging as well as IP networking for Surveillance and Reconnaissance data.

The vision for the future is to provide fully automated IP networks over HF with Wideband (using 48 kHz channel bandwidth) with high data rates up to 240 Kbit/s. The current BRASS Initial Core Capability (ICC) is limited to the processing and management of ACP-127 formatted text messages. The BRASS Enhancement one (BRASS E1) Target Architecture (BRE1TA) is the first step to modernize naval HF communications. Rohde & Schwarz has recently won the contract to perform the BRASS Enhancement one for a Northern European country.

The proposed presentation will show how the current solution of Rohde & Schwarz as well as future developments will ensure a reliable communication infrastructure and a safe operation for navies in the special environment of the North Atlantic and Arctic Exclusive Economic zones.

A Revolutionary HF for High Latitudes

  • Mr Pierre Krotoff
    Marketing and Strategy

HF is the historic long range bearer used by sailors at sea to communicate with shore stations or ashore center of command.

Sharing this part of RF spectrum with many users (not only sailors), the international regulation has limited the HF bandwidth to 3kHz, and, therefore, the data rate of this RF media. Thus, in the best conditions, HF radio links, in this narrow band protocol, can be established up to 19kbps, which is low comparing to satcom performances.

Thales, a worldwide radio leader for Land, Air and Naval forces, has developed with the French MOD a new standard of wideband HF based on a multi 3kHz channels link, transmitting in parallel within a 200kHz bandwidth. This new standard, called HF XL, delivers, at the same time:

  • Resilience, because every 3kHz channel are continuously and dynamically monitored and adapted, thus ensuring permanent connectivity and in-interrupted service
  • Simplicity, because the ALE is really automatic and the station is operational in less than 30 seconds
  • High data rate, as it has been demonstrated during trials (100 [email protected] with the sea wave, and around 80 [email protected] with the sky wave).

These performances open the door to new IP services such as chat, web, transfer of data and image.

While the HF was decreasing in favor of satcom, even if more expensive and less interoperable, this bearer with the HF XL protocol under Nato standardization process (STANAG 4539 appendix H), is re-entering in the naval radio link panoply, contributing to the naval force connectivity, especially in high latitudes where SATCOM have limited coverage.

Multistatic and Collaborative Anti-Submarine Warfare

  • Mme Sandrine Heinis
    Trusted Speaker
    Thales DMS

Over the last 20 years, Multistatic has been aiming to improve detection performances through “small sensors” such as acoustic sonobuoys. Today’s technologies have enabled the ability to extend this processing to organic sensors, such as Hull Mounted Sonars & Variable Depth Sonars, as well as inorganic ones such as Active Dipping Sonars.

Availability of long range & low frequency sensors has created a new paradigm for Multistatic processing & tactics, which revealed to be a real game changer at sea.

With the French Navy & DGA, as well as the Royal Navy & UK-DSTL support, THALES has carried out an extensive sea trial programme proving the operational value of this new capability. This new capability requires key pillars, such as:

  • Communication means between platforms;
  • Collaboration between platforms;
  • Need for full underwater scenario knowledge.

Based on these unrivalled trials, THALES is proud to propose new and available system architectures for ASW ships to fully benefit from Multistatic.

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