Underwater Munitions Response Technologies. Herb Nelson

Transcription

1 Underwater Munitions Response Technologies Herb Nelson

2 DoD s Environmental Technology Programs Science and Technology Demonstration/Validation DoD, DOE, EPA Partnership Advanced technology development to address near-term needs Fundamental research to impact real world environmental management Demonstrate Innovative Cost-Effective Environmental and Energy Technologies Promote Implementation Direct Technology Insertion Partner with End User and Regulator NAOC 2016 General Meeting 2

3 Program Area Management Structure Weapons Systems & Platforms Environmental Restoration Energy & Water Resource Conservation & Resiliency Munitions Response NAOC 2016 General Meeting 3

4 Rough Breakdown of the MR Program Land Enabling Technologies Underwater Sensors and Analysis Underwater Enabling Technologies Support Tools NAOC 2016 General Meeting 4

5 Rough Breakdown of the MR Program Land Enabling Technologies alternative geolocation technologies penetration depth modeling Underwater Sensors and Analysis Underwater Enabling Technologies Support Tools NAOC 2016 General Meeting 5

6 Geolocation in Challenging Environments Deep Integration of IMU and GPS in a software-defined receiver refinement of carrier-phase (or cm-level) techniques ( allows the GPS tracking loops to be aided by the IMU sharing information among channels allows strong signals to assist in the tracking of weaker signals allows for instant reacquisition after brief outages NAOC 2016 General Meeting 6

7 Vector Tracking Instant Reacquisition Doppler frequency and code phase continue to be estimated based on receiver position and velocity estimate (from visible satellites, motion model, or IMU) during signal outage allowing for instant reacquisition. The VDFLL tracks the correct Doppler when the signal is lost (left) and instantly reacquires the code phase when the signal returns. MR NAOC 2016 General Meeting 7

8 Implementation Logging System Splitter Data logging Laptops GPS Receivers Cabling GPS antenna USB 1PPS Power SDR Unit Batteries NAOC 2016 General Meeting MR

9 Implementation Sensors MicroStrain GPS antenna Main GPS antenna UWB unit IMU: Epson IMU MicroStrain NAOC 2016 General Meeting MR

10 UWB Network Deployment at Site 2 GPS antenna UWB Unit ~25 m Pt #1 Pt #3 ~36 m Pt #2 Pt #4 Pole NAOC 2016 General Meeting MR

11 Geolocation in Challenging Environments Both systems to demonstrate at Redstone in 2017 Reports due summer 2017 NAOC 2016 General Meeting 11

12 Penetration Models We have a good handle on the detection depth of munitions using advanced EMI sensors We have anecdotal data on where munitions and clutter are recovered on real sites To close the loop, we need reliable modeling of how deep things can get Started three small efforts in FY16 NAOC 2016 General Meeting 12

13 Rough Breakdown of the MR Program Land Enabling Technologies Underwater Sensors and Analysis Wide Area Assessment and Detailed Surveys Geophysical Sensors magnetometers EMI sensor Acoustic Sensors imaging low frequency (acoustic color or structural acoustics) Underwater Enabling Technologies Support Tools NAOC 2016 General Meeting 13

14 Crawler-Towed EMI Array Intended for surf zone applications First demonstration at Duck, NC in October 2016 Data analysis and lessons learned underway MR NAOC 2016 General Meeting 14

15 Underwater EMI Array Tested at the NSWC Panama City Division s freshwater pond facility this fall Data analysis and reporting underway MR NAOC 2016 General Meeting 15

16 Structural Acoustics Acoustic Imaging Regime Structural Acoustic Regime NAOC 2016 General Meeting Naval Research Lab 16

17 Circular Synthetic-Aperture Sonar Scans High-quality data for classifier training 3D data Training MR-2439 NAOC 2016 General Meeting 17

18 Test Target Data from Gulf of Mexico Cross range (m) Pulse-compressed Baseband Data -50 Time (ms) 50 0 db MR-2505 NAOC 2016 General Meeting 18

19 Measured Response vs Calculation Fully-buried projectile at 5-m range MR-2408 NAOC 2016 General Meeting 19

20 Rough Breakdown of the MR Program Land Enabling Technologies Underwater Sensors and Analysis Underwater Enabling Technologies underwater munitions mobility (modeling and supporting experiments) platforms destruction technologies Support Tools NAOC 2016 General Meeting 20

21 Decision Support System Site of Interest Environmental data Military archives Human interaction Field Studies Sensor Performance Lab Studies Process Model development Expert Input/ Rule-based Models UnMES Re-exposure Migration Burial Risk Assessment Visualization and decision support NAOC 2016 General Meeting 21

22 Underwater Munitions Expert System to Predict Mobility and Burial (UnMES) Environmental setting Initial conditions NAOC 2016 General Meeting MR-2227 Output predictions 22

23 In-situ Measurements MR-2320 MR-2319 MR-2503 MR-2503 NAOC 2016 General Meeting 23

24 Munitions Design and Assembly x-io inertial motion unit Slamstick shock sensor Ubisense wifi tag Measurement Specialties pressure sensor Tadiran battery Luna Photocell (x12) LiFe battery Microedge data logger (x2) NAOC 2016 General Meeting 24

25 Field Set Up Quantify munition trajectories and burial, offshore forcing, local fluid forcing, bed characteristics, sediment suspension and morphology NAOC 2016 General Meeting 25

26 Lab Facilities at the University of Illinois Large wave current flume (LWCF): 49-m long, 1.8-m wide, and 1.2-m deep (central 24-m test section) 0.25 m/s current (at 0.60 m still water depth); waves at 1 Hz and displacement amplitudes of 30 cm Large Oscillatory Water Sediment Tunnel (LOWST): 12.5-m long, 0.8-m wide, and 1.2-m high central horizontal test section up to 0.5 m/s current and maximum of 2 m/s oscillatory flow MR-2410 NAOC 2016 General Meeting 26

27 Multi-Sensor Towbody (MuST) MR-2501 NAOC 2016 General Meeting 27

28 Rough Breakdown of the MR Program Land Enabling Technologies Underwater Sensors and Analysis Underwater Enabling Technologies Support Tools planning for underwater test sites planning tools NAOC 2016 General Meeting 28

29 Underwater Test Site Planning SON Number: MRSON October 29, 2015 Strategic Environmental Research and Development Program (SERDP) FY 2017 STATEMENT OF NEED Munitions Response (MR) Program Area PRELIMINARY DESIGN STUDY FOR MUNITIONS RESPONSE UNDERWATER TEST SITE Two projects starting this year NAOC 2016 General Meeting 29

30 For More Information serdp-estcp.org Program-Areas > Munitions-Response Or Search Project Name / Number / Key Word NAOC 2016 General Meeting 30