Underwater Acoustic Positioning Systems for MEC Detection and Reacquisition Operations

reportActive / Technical Report | Accession Number: AD1026283 | Open PDF

Abstract:

The Nautical Ordnance Mapping and Identification NOMAD is a long baseline acoustic positioning system that integrates high-accuracy time synchronization and wireless radio-modem telecommunications between bottom stations and a cabled pinger attached to a vessel-mounted surface station. The demonstration was performed August 2014 at Pat Mayse Lake, TX. Positioning accuracy in four separate pingerpole tests ranged from 30cm mean with standard deviation of 24cm to 65cm mean with a standard deviation 60cm, which include an estimated 15cm error due to the measured pingerpole tilt. Accuracies improved with experience, the better accuracies were achieved at the end of the field activities and are attributed to lessons learned from earlier deployments. Magnetometer data positioning proved more difficult. Average anomaly repeatability was 1.6m with a standard deviation of 0.9m. The ease of setup met its performance objectives the whole system can be deployed and calibrated in 30 to 45 minutes, and retrieved in less than 10 minutes.

Author(s):
Schwartz, Andrew ; Enriquez, Kelly ; Maxson, Michele
Author Organization(s):
U.S. Army Corps of Engineers Huntsville United States
Descriptive Note:
Technical Report,01 Jan 2007,01 Jan 2016
Pagination:
0071

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release;

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ESTCP
Contract/Grant Number(s):
N00178-04-D-4016-HR18
Task Number(s):
HR18
Project Number(s):
ESTCP-PN-MR-200734
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.1_Deployment and Distribution; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.6.3_Assess Achievement of Objectives; JCA_5.6_Monitor; JCA_6_Net Centric; JCA_6.1.1_Wired Transmission; JCA_6.1.2_Wireless Transmission; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_1_Force Support; JCA_JCA_4.1.2_Sustain the Force; JCA_1.2_Force Preparation; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_1.2.6_Concepts; JCA_1.3_Human Capital Management; JCA_6.4.1_Secure Information Exchange
Modernization Areas:
Microelectronics
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
EXPLOSIVES DETECTION, underwater acoustic positioning, autonomous underwater vehicles, radio links, radio communications, coordinate systems, radio frequency, seabed, debugging, measurement, accuracy, graphical user interface
Field(s)/Group(s):
Underwater and Marine Navigation and Guidance, Acoustics, Telemetry
Keyword(s):
nomad(Nautical Ordnance Mapping And identification), high accuracy time synchronization, uxo(Unexploded Ordnance), mec(Munitions and Explosives of Concern)
Report Date:
2016 Jan 22
Creation Date:
2017 Aug 16