Biological Noise Modeling for Active and Passive Sonar System Performance Predictions
ID: N24A-T020Type: Phase I
Overview

Topic

Biological Noise Modeling for Active and Passive Sonar System Performance Predictions

Agency

Department of DefenseN/A

Program

Type: STTRPhase: Phase IYear: 2024

Topic Link

https://www.sbir.gov/node/2479619

Additional Information

https://www.defensesbirsttr.mil/SBIR-STTR/Opportunities/
Timeline
    Description

    The Department of Defense (DOD) is seeking proposals for the topic "Biological Noise Modeling for Active and Passive Sonar System Performance Predictions" as part of their Small Business Technology Transfer (STTR) Phase I program. The objective is to develop a biologic noise model compatible with Navy standard acoustic propagation packages and highlight existing available and/or lacking biologic diversity density databases. The model should be applicable for both active and passive sonar performance predictions by including both the biologic vocalizations and scattering properties as a function of frequency.

    The DOD aims to develop and demonstrate new reliable and computationally efficient biologic noise models for use within sonar performance prediction modeling packages. The models will help address the issue of biologics being the limiting noise source in certain geographical areas, impacting both passive sensing and active sonar systems. The STTR topic requires the identification of applicable biologic databases, proposal of new databases if necessary, selection of processing techniques, and integration of the developed model into a tactical decision aid. The ultimate goal is to have the model accredited for the Oceanographic and Atmospheric Master Library.

    In Phase I, the focus is on developing the initial model architecture, conceptual design, and algorithms to demonstrate a Technical Readiness Level (TRL) of 3. This includes identifying applicable biologic databases, selecting processing techniques, and providing a case example for a representative sonar system. A model development and validation plan for subsequent phases should also be presented.

    Phase II involves further maturing the biologic noise model based on the Phase I design(s) and validating it to TRL 5 (Phase II Base) and TRL 6 (Phase II Option). Validation criteria include computational load, accuracy, processing time, spatial and temporal resolution, and compatibility with Navy tactical decision aids. Upon completion of Phase II, the developed model and a technical report should be delivered to the Department of the Navy.

    Phase III focuses on dual-use applications, aligning efforts with the program of record to integrate the results of Phase II work. This includes productionizing the source code, incorporating algorithms into Navy systems, and adjusting model requirements based on the operational environment. Dual-use applications also involve coordination with other governmental partners and university partners for oceanographic monitoring, data collection, and research purposes.

    The topic references several relevant sources and keywords, including ocean acoustics, marine biology, oceanographic models, modeling, tactical decision aids, and sonar systems. The solicitation notice was released on November 29, 2023, and the application due date was February 21, 2024. For more information, refer to the solicitation link and agency website.

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