• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Novel solutions for emulating ship signatures - CDE themed call launch 23 July 2013
 

Novel solutions for emulating ship signatures - CDE themed call launch 23 July 2013

on

  • 732 views

Presentation slides from CDE themed call launch webinar on 23 July 2013. For full details of this call for research proposals see: http://www.science.mod.uk/events/event_detail.aspx?eventid=269

Presentation slides from CDE themed call launch webinar on 23 July 2013. For full details of this call for research proposals see: http://www.science.mod.uk/events/event_detail.aspx?eventid=269

Statistics

Views

Total Views
732
Views on SlideShare
728
Embed Views
4

Actions

Likes
0
Downloads
20
Comments
0

1 Embed 4

http://www.linkedin.com 4

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Novel solutions for emulating ship signatures - CDE themed call launch 23 July 2013 Novel solutions for emulating ship signatures - CDE themed call launch 23 July 2013 Presentation Transcript

    • Novel Solutions for Emulating Ship Signatures Centre for Defence Enterprise
    • © Crown Copyright MOD 2011 The aim of CDE
    • © Crown Copyright MOD 2011 Prove the value of novel, high-risk, high-potential-benefit research
    • Two routes to funding
    • Themed calls
    • Defence Open Call
    • Online bid submission
    • Dstl is part of the Ministry of Defence UNCLASSIFIED / For Public Release Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk Crown Copyright Dstl 2012 Know what is available
    • Dstl is part of the Ministry of Defence UNCLASSIFIED / For Public Release Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk Crown Copyright Dstl 2012 Read available information Start with – Quick Start Guide plus other CDE manuals – Account Manual, User Manual, Technology Application Manual Know what is available
    • Crown Copyright (c) 2012 Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk UNCLASSIFIED / FOR PUBLIC RELEASE Based on a claim of future benefit Contribution to realisation of future benefit Logical programme of work Evidential outcomes Demonstration of progress towards goal Health check
    • Dstl is part of the Ministry of Defence UNCLASSIFIED / For Public Release Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk Crown Copyright Dstl 2012 This call closes: 17:00 hrs on Thursday 12 September 2013 Deadline
    • Dstl is part of the Ministry of Defence UNCLASSIFIED / For Public Release Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk Crown Copyright Dstl 2012 31 July 2013 14:00-17:00 15-minute telephone appointment Register via the webpage: www.science.mod.uk Events and Calls > Current calls for proposals > Novel Solutions for Emulating Ship Signatures Surgeries
    • Dstl is part of the Ministry of Defence UNCLASSIFIED / For Public Release Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk Crown Copyright Dstl 2012 Collaboration Join our group on LinkedIn Search ‘Centre for Defence Enterprise’ Technology Strategy Board’s Connect _connect > Organisations > Centre for Defence Enterprise
    • Dstl is part of the Ministry of Defence UNCLASSIFIED / For Public Release Centre for Defence Enterprise www.science.mod.uk/enterprise cde@dstl.gov.uk Crown Copyright Dstl 2012 www.science.mod.uk Events and Calls > Current calls for proposals > Novel Solutions for Emulating Ship Signatures CDE process queries: cde@dstl.gov.uk Technical queries: dstlmaritimeinnovation@dstl.gov.uk Further information
    • UNCLASSIFIED – FOR PUBLIC RELEASE Novel Solutions for Emulating Ship Signatures CDE themed call Dstl reference: DSTL/PUB74519 v1 Technical queries should be sent to dstlmaritimeinnovation@dstl.gov.uk © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Content • Background • Requirement • CDE themed call • Technology challenge • Questions © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Background © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Background – Sea Mines • Sea mines are designed to be activated by one or a combination of, acoustic, magnetic, electric and pressure signature(s) generated by a ship moving in the vicinity of the mine © Crown copyright 2013 Dstl 24 July 2013 Mine Mine Detonated Ship Damaged Ship
    • UNCLASSIFIED – FOR PUBLIC RELEASE Background - Sweeping • Mine sweeping systems are used to create a clear passage for ships to transit safely through a mined water space • Traditional mine sweeps work by using multiple towed sources to output large magnetic and acoustic influences to detonate mines • Technologies to accurately emulate ship signatures are less mature © Crown copyright 2013 Dstl 24 July 2013 Mine Towing Platform Mine Detonated Tow Vessel Safe ource
    • UNCLASSIFIED – FOR PUBLIC RELEASE MOD Requirement © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Requirement The Future Challenge • As mine technology matures it is likely that mines will become more capable in selecting individual ships for targeting and rejecting the influences generated by present sweeping systems © Crown copyright 2013 Dstl 24 July 2013 Reject - Present sweeping systems Mine detonate Source Source Source Reject Future mine technology "© Crown copyright 2013""© Crown copyright 2013"
    • UNCLASSIFIED – FOR PUBLIC RELEASE Requirement Required Solution • Therefore the UK requires a capability that can accurately emulate the signature of a full range of different naval platforms, without identifying that the signatures are generated by a sweeping system © Crown copyright 2013 Dstl 24 July 2013 Source Source Source Mine detonate - Novel CDE sweep concepts Reject Mine detonate Reject Future mine technology "© Crown copyright 2013""© Crown copyright 2013"
    • UNCLASSIFIED – FOR PUBLIC RELEASE CDE Themed Call © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE CDE Themed Call CDE themed call for research proposals : • We are seeking new, compact and lightweight solutions that can more accurately emulate ship signatures • Ship signatures to be emulated include: – Magnetic, acoustic, electric and pressure • Proposals should address at least one type of signature emulation. They could address more than one type, but do not have to address all signature emulations – To assist with the assessment and award of proposals, if you plan to submit multiple solutions that address more than one type of signature influence, it would be preferred if separate proposals were submitted for each influence © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE CDE Themed Call • The proposed solutions should lead to a design for the next generation of mine sweeping source technology that can be towed by, or integrated within, a small or medium sized Unmanned Surface Vessel (USV) or a number of such vessels © Crown copyright 2013 Dstl 24 July 2013 USV (Towing) Platform Source Source SourceSource
    • UNCLASSIFIED – FOR PUBLIC RELEASE Technology Challenges • When thinking about solutions for each signature generation it is important that solutions should aim to accurately emulate ship signatures and not generate any other unwanted signatures in the water • Unwanted signatures could impact on the emulation accuracy of other sweep influence signatures or could indicate to the mine that the signature is being generated by a sweeping system – For example, generating unwanted electric signatures when emulating magnetic signatures and vice-versa. © Crown copyright 2013 Dstl 24 July 2013 Required Magnetic Signature Very Large Unwanted Electric Signature
    • UNCLASSIFIED – FOR PUBLIC RELEASE What We Want • Proposals that will demonstrate or de-risk the exploitation of existing and/or emerging technology to provide novel solutions for accurately emulating ship signatures – Low TRL proof-of-concept demonstrations – Innovative design solutions to enable proof-of-concept demonstrations if they de-risk technology challenges • Design proposals will be required to generate supporting evidence of being capable of successfully generating representative ship signatures • This call is not limited to new technology and can consider how existing technologies in other areas could be applied to provide an advanced mine sweeping system © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE What We Want • Proposals which offer a concrete demonstration of progress in maturing technology are more likely to be successful than those offering, for example, solely paper-based studies – Demonstrations could be land-based or laboratory measurements rather than going to the expense and complication of a sea trial © Crown copyright 2013 Dstl 24 July 2013 A full detailed breakdown of what we want from proposals is available in the full call document
    • UNCLASSIFIED – FOR PUBLIC RELEASE What We Don’t Want • Ordinary solutions, or technology that is known to have already been considered and found to have limited capability • Solutions that offer marginal improvements in capability • Technology watch/horizon scanning • Roadmaps and technology predictions © Crown copyright 2013 Dstl 24 July 2013 A full detailed breakdown of what we don’t want from proposals is available in the full call document
    • UNCLASSIFIED – FOR PUBLIC RELEASE Exploitation • It is planned for all CDE-funded projects from this themed call to be completed by March 2014 so that they can be reviewed and projects may be selected for phase 2 funding – Successful outputs of CDE funded projects from this themed call may be taken forward under the Maritime and Strategic Systems research programme • Successful work may be matured further within the science and technology programme before potentially being exploited via the Mine Countermeasure, Hydrographic and Patrol Capability (MHPC) procurement programme © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation Accurate emulation of ship magnetic signatures (priority 1) • Ship magnetic signatures are made up of two components: the static magnetic and alternating magnetic signatures, which can both be used by sea mines to determine whether to detonate the mine • Mine magnetic sensors measure magnetic signature levels as the ship approaches the vicinity of the mine © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation • The magnetic signatures of a ship are conventionally split into 3- axes (longitudinal, athwartship and vertical), with each component varying in shape and magnitude • Military ships are typically fitted with degaussing coils to reduce their magnetic signature levels. However, when the degaussing coils are switched on this can add extra turning points in the signature, particularly in shallow water © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation © Crown copyright 2013 Dstl 24 July 2013 Ship static magnetic signature with degaussing • Reduced amplitude • Extra turning points Example Static Magnetic Signatures Ship static magnetic signature without degaussing • Large amplitude • Low number of turning points - Longitudinal - Athwartship - Vertical L V A"© Crown copyright 2013"
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation © Crown copyright 2013 Dstl 24 July 2013 Key challenges to address for static magnetic signatures: • Accurately generate 3-axis static magnetic signatures • Highly configurable to emulate complex ship signature shapes • Solutions can include towing multiple sources to achieve multiple turning points • Generate peak magnetic signature levels up to 20,000 nT on each individual axis at a distance of 20 m • Signatures should decay with distance in the same way that a ship’s signature would 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation © Crown copyright 2013 Dstl 24 July 2013 Key challenges to address for alternating magnetic signatures: • Accurately generate 3-axis alternating magnetic signatures • Highly programmable to emulate complex ship signatures • The user should be able to define multiple frequencies to be generated • Aspiration is to create alternating magnetic signatures up to 3 kHz • Each frequency component to have varying amplitude up to 500 nT on each individual axis at a distance of 20 m • Signatures should decay with distance in the same way that a ship’s signature would 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Magnetic Signature Emulation Additional potential benefit, though not primary aim of CDE call: • The capability to generate larger amplitude magnetic signatures and signatures at greater frequencies – Though this should not be at the compromise of degrading the accuracy of signature emulation or significantly compromising the size and weight of the solution • For towed solutions it would also be beneficial for a system to be capable of reducing the magnetic signature level close to the towing vessel when outputting large signatures to reduce vulnerability of the towing platform © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation Accurate emulation of ship acoustic signatures (priority 1) • The main sources of ship’s acoustic signatures are: – Machinery noise – Propeller noise – Hydrodynamic noise • Mine acoustic sensors measure acoustic signature levels over a range of frequencies as the ship approaches the vicinity of the mine © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation Example Acoustic Signature Ship acoustic signatures are made up of: • A broadband signature across all frequencies • And multiple narrowband tonals • With varying acoustic power levels across frequencies © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation Key challenges to address for acoustic signatures: • Accurately generate the required acoustic power levels across frequencies from 5 Hz up to 60 kHz to emulate ship signatures • Outputting the required acoustic power at the lower frequencies is particularly challenging for a compact and lightweight solution • Capability to continuously and simultaneously generate a broadband signature shape and multiple narrowband tonals © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation Key challenges to address for acoustic signatures: • Programmable to accurately emulate a variety of signature shapes • Flat broadband acoustic source levels aspirationally up to 200 dB re 1µPa @ 1m/√Hz up to 500 Hz, then rolling off at -6 dB per octave and capable of generating any shape below these levels • Multiple narrowband tonals with acoustic source levels aspirationally up to 200 dB re 1µPa @ 1m across the frequency range © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation • It is acceptable for solutions to generate the acoustic signatures using multiple sources • If these sources can also be separate to represent the distribution along the length of the ship then this would be beneficial but not essential © Crown copyright 2013 Dstl 24 July 2013 Multiple distributed acoustic sources © Crown copyright 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation Additional potential benefit, though not primary aim of CDE call: • The capability to generate larger acoustic signatures and signatures across a wider range of frequencies would add further benefit – Though this should not be at the compromise of degrading the accuracy of signature emulation or significantly compromising the size and weight of the solution © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Acoustic Signature Emulation • It is recognised that it is very challenging for a compact solution to generate large power acoustic signatures at the lower frequencies • We are also interested in novel solutions that cannot meet the full range of aspirational power levels at the lower frequencies, but offer significant improvements in current acoustic sweeping capability © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Electric Signature Emulation © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Electric Signature Emulation Accurate emulation of ship electric signatures (priority 2) • Ship electric signatures are made up of two components: the static electric and alternating electric signatures, which can both be used by sea mines to determine whether to detonate the mine • Mine electric sensors measure electric signature levels as the ship approaches the vicinity of the mine © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Electric Signature Emulation © Crown copyright 2013 Dstl 24 July 2013 Key challenges to address for static electric signatures: • Accurately generate 3-axis static electric signatures • Highly configurable to emulate complex ship signature shapes • Solutions can include towing multiple sources to achieve multiple turning points • Generate peak electric signature levels up to 10,000 µV/m on each individual axis at a distance of 20 m • Signatures should decay with distance in the same way that a ship’s signature would 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Electric Signature Emulation © Crown copyright 2013 Dstl 24 July 2013 Key challenges to address for alternating electric signatures: • Accurately generate 3-axis alternating electric signatures • Highly programmable to emulate complex ship signatures • The user should be able to define multiple frequencies to be generated • Aspiration is to create alternating electric signatures up to 3 kHz • Each frequency of varying amplitude up to 500 µV/m on each individual axis at a distance of 20 m • Signatures should decay with distance in the same way that a ship’s signature would 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Electric Signature Emulation Additional potential benefit, though not primary aim of CDE call: • The capability to generate larger amplitude electric signatures and signatures at greater frequencies would add further benefit – Though this should not be at the compromise of degrading the accuracy of signature emulation or significantly compromise the size and weight of the solution © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Pressure Signature Emulation © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Pressure Signature Emulation Accurate emulation of ship pressure signatures (priority 2) • The pressure signature of a ship has peaks at the bow and stern of the ship and a pressure decrease (suction) in the central area • Mine pressure sensors measure pressure signature levels as the ship approaches the vicinity of the mine © Crown copyright 2013 Dstl 24 July 2013 Peak at bow Peak at stern Suction © Crown copyright 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Pressure Signature Emulation Key challenges to address for pressure signatures: • Configurable to accurately generate time-varying pressure levels that accurately emulate specific ship pressure signatures • Aspiration for solutions to be capable of outputting pressure suction amplitudes from 50 Pa up to 10,000 Pa (reduction of 5 mm to 1020mm in water head) at 20m depth • Aspiration to emulate ship pressure wave-periods from 5 seconds to 500 seconds © Crown copyright 2013 Dstl 24 July 2013 Wave- period
    • UNCLASSIFIED – FOR PUBLIC RELEASE Pressure Signature Emulation • It is recognised that pressure signature generation is very challenging • We are also interested in novel solutions that cannot meet the full range of aspirational amplitudes and wave-periods specified, but offer significant improvements in current pressure sweeping capability © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Summary © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Summary • We are seeking new, compact and lightweight solutions that can more accurately emulate ship signatures and not generate any other unwanted signatures in the water • Ship signatures to be emulated include: – Magnetic, acoustic, electric and pressure • Solutions should lead to a design for the next generation of mine sweeping source technology that can be towed by or integrated within a small or medium sized USV © Crown copyright 2013 Dstl 24 July 2013
    • UNCLASSIFIED – FOR PUBLIC RELEASE Summary • Key call dates: © Crown copyright 2013 Dstl 24 July 2013 23 July 2013 - Call launch webinar 12 September 2013 - Call closes at 1700 hours 24 October 2013 - Contract placement initiated and feedback provided 24 March 2014 - Proof-of-concept research complete • Call links • One-to-one teleconference opportunity on 31 July 2013 CDE Event: http://www.science.mod.uk/events/event_detail.aspx?eventid=269 CDE Call Doc: http://www.science.mod.uk/getfile.aspx?779 Technical Questions: dstlmaritimeinnovation@dstl.gov.uk CDE Questions: cde@dstl.gov.uk
    • © Crown copyright 2013 Dstl 24 July 2013