**Executive Summary**
The Technology Development Board (TDB), Department of Science & Technology (DST), Government of India, has signed an agreement with M/s Xalten Systems Pvt. Ltd., India, to develop a High-Performance Acoustic Antenna System for Underwater High Data Rate Communication for Video Transmission. This Indo-Singapore joint proposal aims to address a technology gap in underwater acoustic communication, positioning India as a key player in the blue economy. The initiative will establish scalable manufacturing capabilities within India for advanced acoustic sensors.
**Key Points / Main Content**
* **Project Overview:**
* The project focuses on developing next-generation hydrophone array sensor systems for reliable, high-bandwidth underwater communication.
* The project includes real-time video transmission between autonomous underwater platforms.
* The initiative combines Indian expertise with advanced software-defined communication systems from Subnero Pte Ltd, Singapore.
* **Technical Goals:**
* Develop wideband hydrophones optimized for short-range, high-speed communication.
* Design an advanced acoustic antenna system capable of megabit-per-second data rates.
* Integrate precision acoustic sensor arrays with software-defined communication frameworks.
* Enable real-time collaboration, navigation, and data sharing across marine robotic systems.
* **Strategic Objectives:**
* Establish scalable manufacturing capabilities within India for advanced acoustic sensors.
* Reduce reliance on imported technologies in underwater sensing and communication.
* Strengthen international technology partnerships.
* Facilitate commercialization of indigenous technologies developed through industry-led R&D and strategic collaborations.
* Promote technology translation, maritime innovation, and self-reliance in critical ocean technologies.
**Impact Analysis**
**Stakeholder: M/s Xalten Systems Pvt. Ltd.**
* **Impact:** Xalten Systems can accelerate the development of application-optimized acoustic antenna systems tailored for next-generation underwater robotics and communication networks.
* **Action Required:** Develop the High-Performance Acoustic Antenna System for Underwater High Data Rate Communication.
**Stakeholder: Technology Development Board (TDB)**
* **Impact:** Supports the development and commercialization of high-performance indigenous acoustic technologies. TDB can promote technology translation, maritime innovation, and self-reliance in critical ocean technologies, contributing to India's expanding role in the global blue economy.
* **Action Required:** Facilitate commercialization of indigenous technologies developed through industry-led R&D and strategic collaborations.
**Stakeholder: India's Maritime Research, Offshore Infrastructure, and Strategic Sectors**
* **Impact:** Advanced underwater communication systems are critical for India's maritime research, offshore infrastructure, and strategic sectors.
* **Action Required:** Benefit from the development and commercialization of high-performance indigenous acoustic technologies.
Key Entities Referenced
Technology Development Board (TDB): An organization that supports the commercialization of indigenous technologies developed through industry-led R&D and strategic collaborations.
Department of Science & Technology (DST): The Indian government department under which the TDB functions.
Development of High-Performance Acoustic Antenna System for Underwater High Data Rate Communication for Video Transmission: A project supported by TDB, aimed at developing next-generation hydrophone array sensor systems for underwater acoustic communication.
M/s Xalten Systems Pvt. Ltd.: The Indian company that signed an agreement with TDB for the "Development of High-Performance Acoustic Antenna System for Underwater High Data Rate Communication for Video Transmission" project.
Singapore: The location of Subnero Pte Ltd, the company collaborating with the initiative combining Indian expertise in underwater acoustics with advanced software-defined communication systems.
Ministry of Science & Technology
“TDB-DST Supports Indigenous Development of
High-Performance Acoustic Antenna System for
Underwater High Data Rate Communication”
Posted On: 25 FEB 2026 1:19PM by PIB Delhi
In a strategic step toward strengthening India’s capabilities in advanced marine technologies, the
Technology Development Board (TDB), Department of Science & Technology (DST), Government of
India, has signed an agreement with M/s Xalten Systems Pvt. Ltd., India, for the project titled
“Development of High-Performance Acoustic Antenna System for Underwater High Data Rate
Communication for Video Transmission.”
The TDB-supported project addresses a critical technology gap in underwater acoustic communication by
developing next-generation hydrophone array sensor systems capable of enabling reliable, high-bandwidth
communication—including real-time video transmission—between autonomous underwater platforms.
The initiative is being undertaken in collaboration with Subnero Pte Ltd, Singapore, combining Indian
expertise in underwater acoustics with advanced software-defined communication systems.
With the increasing deployment of autonomous underwater vehicle (AUV) swarms for offshore energy
operations, deep-sea exploration, marine research, and strategic applications, the demand for robust, high-
data-rate underwater communication systems has become urgent. Existing global solutions, offered by
established players such as Kongsberg Maritime, Sonardyne and EvoLogics, largely focus on long-range,
low-bandwidth communication built on legacy architectures. The proposed indigenous system aims to
bridge this gap by developing wideband hydrophones optimized for short-range, high-speed
communication between multiple autonomous platforms.
The project envisions the design and development of an advanced acoustic antenna system capable of
megabit-per-second data rates while maintaining reliability in challenging underwater environments. By
integrating precision acoustic sensor arrays with software-defined communication frameworks, the
solution will support real-time collaboration, navigation, and data sharing across marine robotic systems.
The initiative also aims to establish scalable manufacturing capabilities within India for advanced acoustic
sensors, reducing reliance on imported technologies and enhancing domestic competence in underwater
sensing and communication.
Speaking on the occasion, Shri Rajesh Kumar Pathak, Secretary, TDB, stated, “Advanced underwater
communication systems are critical for India’s maritime research, offshore infrastructure, and strategic
sectors. Through this Indo–Singapore joint proposal, TDB is supporting the development and
commercialization of high-performance indigenous acoustic technologies that can position India as a key
player in the emerging blue economy, while strengthening international technology partnerships for
mutual growth.”
Promoter of Xalten Systems Pvt. Ltd. stated, “TDB’s support enables us to accelerate the development of
application-optimized acoustic antenna systems tailored for next-generation underwater robotics and
communication networks. This collaboration strengthens India’s technological capabilities in marinesensing and high-data-rate underwater communication.”
The project aligns with TDB’s mandate to facilitate commercialization of indigenous technologies
developed through industry-led R&D and strategic collaborations. By supporting high-performance
underwater communication systems, TDB continues to promote technology translation, maritime
innovation, and self-reliance in critical ocean technologies, contributing to India’s expanding role in the
global blue economy.
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NKR/FK
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