1 of 11

#38 - Tactical Data Link Interoperability: MDLP Phase 2

Tomás de A. T. Botelho1, , Edmundo L. Cecílio1, Anderson F. de Oliveira1

1Centro de Análise de Sistemas Navais (CASNAV), Rio de Janeiro/RJ – Brasil

2 of 11

Agenda

  1. Intro,

  1. About interoperability,

  1. The first field interoperability,

  1. The protocol,

  1. Performance,

  1. Conclusion and Future works.

1/8

3 of 11

Intro

  • Why Brazil need a multi-data link protocol1 ?

  • Considerations about distinct and legacy equipment, radio and TDL (Tactical Data Links)
  • Context, legacy and diversity of protocols in Brazil

(YB on surface vessels, STERNS on subsurface vessels, The legacy BR1 on Brazilian armed forces, The new class Tamandare with Adelis, CFN (Adsumus!) with TGI, DYI as a legacy systems)

  • MDLP as a software!

1(A.K.A The Brazilian Multi Data Link Processor)

2/8

4 of 11

About interoperability

MDLP as a software!

Java 11!

Arm and X64 (It works, better with Java 11, crunch numbers on paper)

Location {Lat Long and conversions between TDL, 65k bottom of sea to Brazilian SGDC high altitude distance} , Operational Status and Hostility {Jc3 Hostility subset Friend, Enemy, etc}

3/8

5 of 11

The first field interoperability test

Sailors, to the sea!

[picture here!]

In September 2021, the MDLP project team in collaboration with the STERNA project team, held a field interoperability test, using two Brazilian navy vessels following the network architecture shown in Figure 1.

4/8

6 of 11

About the protocol

Figure 2 presents the comparison between old and the new MDLP protocol data units. A data unit containing only the information of a single track will be reduced from seventy-eight bytes to twenty-nine bytes in its new encoding, which represents a size reduction of about 63%.

5/8

7 of 11

Performance - METHOD AND TEST

6/8

8 of 11

Performance

Intel I5, Arm M1 and Arm 53 can be used!

Processors and energy saving is better than performance on legacy materiel. Arm processors can be useful for MDLP.

Sometimes 50% BETTER!

7/8

9 of 11

Conclusion and future works

Results of the MDLP first field test

Enhancements on the protocol

Data performance tests, Arm processor

Purchase and operation of HMS Ocean with a type 997 Artisan radar! (110 nm)

YB, Sterna, BR1, BR2, TGI, Adelis, and more legacy interactions

8/8

10 of 11

References

11 of 11

Contact