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Multi-Line Towed Array Sensor Location System

Award Information

Department of Defense
Award ID:
Program Year/Program:
1996 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Technology Service Corporation
962 Wayne Avenue Suite 800 Silver Spring, MD 20910-4453
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 1996
Title: Multi-Line Towed Array Sensor Location System
Agency / Branch: DOD / NAVY
Contract: N/A
Award Amount: $69,701.00


A critical factor in the development of multi-line, passive, towed acoustic arrays is measuring the relative location of each acoustic sensor element in the array. Require- ments for measurement accuracies are expected to be the order of 2 to 4 cm to optimize beamforming. TSC proposes the development and laboratory testing of such a sensor location system (SLS). SLS generates a time-varying magnetic field in each line array and then measures the induced voltage with a set of small solenoid coils in an adjacent line array. Radial distance from the transmitting line array to each coil, and thus to each acoustic sensor, can then be calculated. Issues critical to concept feasibility include SLS size and form factor, array buoyancy, compatibility with existing array telemetry, magnetic field generator design, developing sensor location algorithms based on available measurements as well as accuracy of these measurements . , and interception of the SLS signal by hostile sensors. In Phase I each of these issues will be addressed, followed-by a laboratory test of the SLS concept to confirm feasibility. Phase II will demonstrate SLS performance via underwater tow tests.

Principal Investigator:

Dr. Lowell W. Brooks

Business Contact:

Small Business Information at Submission:

Technology Service Corp
2950 31st Street Suite 200 Santa Monica, CA 90405

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No