# Project 0000 — Undersea Warfare Applied Res

**Program element:** 0602747N — Undersea Warfare Applied Res  
**Project:** 0000  
**Component:** U.S. Navy  
**Appropriation:** 1319 — RDT&E, Navy  
**Budget Activity:** 2 — Applied Research  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0602747N/0000  
**Parent:** https://hitchintel.com/programs/0602747N

## Summary

Project 0000 — Undersea Warfare Applied Res requests $52.5M in FY2027, 100% of the $52.5M requested for program element 0602747N, down 18% on FY2026. 5 R-2A activities decompose the request.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 60.2 |
| FY2026 | Enacted | 64.3 |
| FY2027 | Request | 52.5 |
| FY2028 | Outyear | 57.3 |
| FY2029 | Outyear | 58.2 |
| FY2030 | Outyear | 57.0 |
| FY2031 | Outyear | 58.2 |

> Estimate types are not summed. This project is one leaf of PE 0602747N; the PE total is the sum of its projects, never added to them.

## What project 0000 buys

This PE funds applied research efforts in undersea target detection, classification, localization, tracking, and neutralization. Associated efforts focus on new Anti-Submarine Warfare (ASW) operational concepts that promise to improve wide-area surveillance, detection, localization, tracking, and attack capabilities against quiet adversary submarines operating in noisy and cluttered shallow water environments. Related efforts are aimed at leveraging technologies that will protect the country's current capital investment in surveillance, submarine, surface ship, and air ASW assets.

## Activities (R-2A) — 5

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Anti-Submarine Warfare (ASW) Distributed Search | 11.8 | 23.5 | 18.8 | −20% | [a0](https://hitchintel.com/programs/0602747N/0000/a0) |
| Anti-Submarine Warfare (ASW) Surveillance | 27.7 | 21.0 | 18.8 | −11% | [a2](https://hitchintel.com/programs/0602747N/0000/a2) |
| Undersea Weaponry | 14.4 | 13.7 | 10.9 | −21% | [a4](https://hitchintel.com/programs/0602747N/0000/a4) |
| Anti-Submarine Warfare (ASW) Precision Localization | 3.7 | 3.6 | 2.9 | −17% | — |
| Marine Biology | 2.6 | 2.5 | 1.1 | −56% | — |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### Anti-Submarine Warfare (ASW) Distributed Search

-Continue Active Sonar development of advanced signal and information processing for high duty cycle active sonar. Further development of concepts for next-generation active sonar system automation, leveraging the latest advances in machine learning and artificial intelligence. -Continue non-acoustic, orthogonal concepts that complement…

Full year-by-year narrative: https://hitchintel.com/programs/0602747N/0000/a0

### Anti-Submarine Warfare (ASW) Surveillance

-Continue Sonar signal processing related research to develop artificial intelligence technology providing optimized sonar system line-ups that adjust themselves in real time to the current undersea environment. -Continue Sonar exploitation of the information content of ambient noise, creating novel tactical detection methods that…

Full year-by-year narrative: https://hitchintel.com/programs/0602747N/0000/a2

### Undersea Weaponry

- Continue applied research related to critical Science and Technology (S&T) for Rapid-Reaction Undersea Weapons and Counter-Measures, High-Speed Vehicle Technology, Undersea Warheads Technology, RPG-of-the-Sea and Air-Independent Power and Energy. - Continue applied research to explore additional transition opportunities for…

Full year-by-year narrative: https://hitchintel.com/programs/0602747N/0000/a4

### Anti-Submarine Warfare (ASW) Precision Localization

**FY2027 planned work.** -Continue Precision Localization research on advanced sensing modalities and sampling approaches. Investigate alternative emethods for Precision Localization leveraging magnetic and electric field sensing technologies and incorporating alternative technologies and approaches. -Continue sensors research into novel methods to develop smaller and power efficient, high performance magnetic, electric field, acoustic, and novel sensors. Continue research on advanced concepts for processing arrays of independent sensors to create adaptive information theoretic sensor systems. Continue applied research into information theoretic optical sampling and telemetry characteristics to better support sensor performance and data integrity; improve the effectiveness of photonic sensor operations across the air-water interface; and extend the distance optical sensors can effectively operate within the water column. -Continue Remote and Optical Sensing research into remote methods of sensing target signatures. Continue research on optical sensing for precision localization and to better exploit the information capacity available in photonic systems to increase sensor performance.

**FY2026 to FY2027 change.** There is no significant change between FY 2026 and FY2027 funding.

**FY2026 plans — current year.** -Continue Precision Localization research on advanced sensing modalities and sampling approaches. Investigate alternative emethods for Precision Localization leveraging magnetic and electric field sensing technologies and incorporating alternative technologies and approaches. -Continue sensors research into novel methods to develop smaller and power efficient, high performance magnetic, electric field, acoustic, and novel sensors. Continue research on advanced concepts for processing arrays of independent sensors to create adaptive information theoretic sensor systems. Continue applied research into information theoretic optical sampling and telemetry characteristics to better support sensor performance and data integrity; improve the effectiveness of photonic sensor operations across the air-water interface; and extend the distance optical sensors can effectively operate within the water column. -Continue Remote and Optical Sensing research into remote methods of sensing target signatures. Continue research on optical sensing for precision localization and to better exploit the information capacity available in photonic systems to increase sensor performance.

### Marine Biology

**FY2027 planned work.** -Continue efforts of applied research in areas including monitoring and detection, integrated ecosystem, and effects of Anti- Submarine Warfare (ASW) sonar on marine species -Continue Passive Acoustic Monitoring research efforts on passive acoustics and other technology supporting wide area surveillance, including the development and testing of new autonomous hardware platforms and signal processing algorithms for detection, classification, and localization of marine species. -Continue research to advance our understanding of sound reception mechanisms in large whales including the anatomy surrounding the ear and the whole head to improve and validate finite element models of sound propagation through various tissues. -Continue research using animal tagging and passive acoustic monitoring to quantify behaviors, movement, and distribution of marine species relative to key environmental properties and sonar exposure, both incidental and experimental. -Continue Sonar Exposure research to quantify the behavioral and physiological effects to potentially population-level consequences of sonar exposure on marine life to develop risk criteria for Navy's sound effects modeling, as well as develop quantitative inputs for modeling biologically significant effects on marine species populations. Navy sound effects modeling is used in Environmental Impact Statements, and subsequent Letters of Authorization issued by the NOAA regulator that enable all Navy Anti- Submarine Warfare (ASW) exercises and testing. -Continue further research efforts to design equipment and capability to quantify the physiological requirements, such as gas management and kinetics, in marine species to evaluate the mechanisms that enable marine species to dive too deep. -Continue marine species behavior research into the stress response of marine species to ASW sonar exposure with an emphasis on quantifying the effects of prolonged exposure on immune system suppression, reproductive failure, accelerated aging, and slowed growth. -Continue to conduct research on potential effects of Navy ASW sonar sources on marine species behavior, life functions, vital rates, and population level effects. The goal is to understand and quantify the effects of naval activities on species or stocks of marine species, including effects on annual rates of recruitment and survival. -Continue Environmental Compliance research to provide tools to support environmental compliance efforts and decision making related to how marine species can be affected by anthropogenic sounds.

**FY2026 to FY2027 change.** Decrease in funding from FY2026 to FY2027 is due to decreased research efforts across multiple areas including passive acoustics monitoring, sonar exposure research, and marine species behavior.

**FY2026 plans — current year.** -Continue efforts of applied research in areas including monitoring and detection, integrated ecosystem, and effects of Anti- Submarine Warfare (ASW) sonar on marine mammals. -Continue Passive Acoustic Monitoring research efforts on passive acoustics and other technology supporting wide area surveillance, including the development and testing of new autonomous hardware platforms and signal processing algorithms for detection, classification, and localization of marine mammals. -Continue research using animal tagging and passive acoustic monitoring to quantify behaviors, movement, and distribution of marine mammals relative to key environmental properties and sonar exposure, both incidental and experimental. -Continue Sonar Exposure research to quantify the behavioral and physiological effects to potentially population-level consequences of sonar exposure on marine life to develop risk criteria for Navy's sound effects modeling, as well as develop quantitative inputs for modeling biologically significant effects on marine mammal populations. Navy sound effects modeling is used in Environmental Impact Statements, and subsequent Letters of Authorization issued by the NOAA regulator that enable all Navy Anti- Submarine Warfare (ASW) exercises and testing. -Continue further research efforts to design equipment and capability to quantify the physiological requirements, such as gas management and kinetics, in marine mammals to evaluate the mechanisms that enable marine mammals to dive to deep. -Continue research to advance our understanding of sound reception mechanisms in large whales including the anatomy surrounding the ear and the whole head to improve and validate finite element models of sound propagation through various tissues. -Continue Marine Mammal Behavior research into the stress response of marine mammals to ASW sonar exposure with an emphasis on quantifying the effects of prolonged exposure on immune system suppression, reproductive failure, accelerated aging, and slowed growth. -Continue to conduct research on potential effects of Navy ASW sonar sources on marine mammal behavior, life functions, vital rates, and population level effects. The goal is to understand and quantify the effects of naval activities on species or stocks of marine mammals, including effects on annual rates of recruitment and survival. -Continue Environmental Compliance research to provide tools to support environmental compliance efforts and decision making related to how marine mammals can be affected by anthropogenic sounds.

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0602747N.

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0602747N project 0000 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0602747N")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*