Signal Processing News

© Teledyne Marine

Teledyne Marine RESON Celebrates 50 Years

and naval vessels.A notable moment in RESON’s technological journey was its role in commercializing modern sonar technology, making multibeam sonar systems more compact, practical and accessible to surveyors worldwide. RESON also set early benchmarks in data quality through the adoption of advanced signal-processing techniques to enhance detection capability, maximize data accuracy and elevate seabed imaging clarity. RESON hydrophones are used in demanding commercial and defense applications, with many units still in active service more than three decades after installation.A hallmark of RESON is

Source: social media

Underwater Infrastructure Security Project Launched in Norway

, have clearly exposed the limitations of today’s largely ad-hoc and spatially limited monitoring approaches.INSURE will address this challenge by developing a cost-effective, long-range, and continuous monitoring solution based on Distributed Acoustic Sensing (DAS), combined with advanced signal processing, machine learning, and multi-source data fusion. By transforming existing fiber-optic cables into real-time sensing systems and analyzing underwater acoustic intelligence with vessel tracking data, INSURE enables early threat detection, precise geo-localisation, and predictive risk assessment

© Vatn Systems

Vatn Systems Acquires Crewless Marine

Vatn Systems, a defense technology company building autonomous underwater vehicles (AUVs) for the US military, allied nations, and commercial customers, announced the acquisition of Crewless Marine, a Rhode Island-based company specializing in advanced underwater acoustic sensing and signal processing.Founded by former Navy engineers, Crewless Marine brings experience in torpedo acoustic systems, hydrophone manufacturing, and real-time signal processing. The acquisition strengthens Vatn's strategy to vertically integrate its tech stack to control critical technologies, reduce supply

© NUWC

NUWC Division Newport Hosts Warfighters Panel, ‘Cup O’ Joe’ to Celebrate Veterans

.”Cup O’ JoeAt the conclusion of the warfighters panel, Division Newport hosted its annual “Cup O’ Joe” event, which gives employees a chance to discuss their experiences in the military and swap stories over coffee.Among the attendees were Susan Balcirak, head of the Signal Processing and Analysis Branch, and her husband Dean Balcirak, head of the Information Customer Services Branch. The North Kingstown, Rhode Island, couple met during their freshman year at the U.S. Naval Academy when they were paired together on a boat for the sailing team. Dean, who grew up in the Great

Principal Researcher Seong-Hyun Lee of KIMM.
Image Credit: Korea Institute of Machinery and Materials (KIMM)

KIMM Cracks the Code for Underwater Radiated Noise Prediction

methods, which require intermittent data collection using external equipment in quiet sea areas free from surrounding ship traffic, the new system enables continuous onboard monitoring with real-time updates. Even with a limited number of sensors, the optimized sensor placement and advanced signal processing techniques allow the system to maintain high prediction accuracy, achieving a margin of error within 4 decibels during real-world tests.The algorithm processes real-time data from accelerometers attached to the vessel’s hull, analyzing vibration characteristics, radiation efficiency,

The 2025 Janus Review addresses critical challenges, and showcases new applications and technologies that are shaping the USV sector. Credit: Janus Marine and Defense LLC

2025 Janus Review: USV Industry Trends

revolutionize USV autonomy. Integrating real-time diagnostics with autonomous decision-making requires highly advanced algorithms and robust onboard computing, capabilities not yet fully matured or widely available.Acoustic sensing faces major challenges such as high ambient noise levels, complex signal processing requirements, and reliable integration into autonomy algorithm—all areas needing ongoing research and improvement

Teledyne Marine Unveils BlueStreamX2 Enhancement for Benthos Acoustic Modems

performance. This upgrade is now available across all Benthos modem families—Acoustic Telemetry Modem (ATM), Compact Modem (CM), and Ultra Compact Modem (UCM)—as well as on UTS topside systems.Benthos acoustic modems, known for their reliable underwater data transmission using digital signal processing modulation techniques, have historically operated over a 5 kHz bandwidth with bit rates up to 2400 bits per second. With the new BlueStreamX2 enhancement, the bandwidth has been expanded to 10 kHz, doubling the data rate to 4800 bits per second.This breakthrough is made possible by the innovative

CUREE, an autonomous underwater robot, is used by the researchers to collect acoustic data for analysis. (Photo by Austin Greene, ©Woods Hole Oceanographic Institution)

Neural Network Identifies Coral Reef Sounds

with a neural network to identify fish activity on coral reefs by sound.For years, researchers have used passive acoustic monitoring to track coral reef activity. Typically, an acoustic recorder would be deployed underwater, where it would spend months recording audio from a reef. Existing signal processing tools can be used to analyze large batches of acoustic data at a time, but they cannot be used to find specific sounds. To do that, scientists usually need to go through all that data by hand.As an alternative, the researchers trained a neural network to sort through the deluge of acoustic

David Pistacchio (c) NUWC

NUWC's Pistacchio wins ONR Achievement Award

contributed substantially to the knowledge and capabilities of the Department of the Navy (DON), Department of Defense and the nation. It is the highest award that ONR confers on a naval research scientist.Pistacchio, a resident of Narragansett, Rhode Island, is a senior technologist for acoustic signal processing and has earned a reputation as a consummate professional over the course of his 42-year career, with the last 30 years working for the Navy. He has distinguished himself as a national and international subject matter expert in active and passive acoustic signal processing.Throughout his career

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