AI-Based Acoustic Modems
AI-Based Acoustic Modems
AI-Based Acoustic Modems
The ModemGard Series is MarineGard's family of advanced acoustic communication modems designed to establish reliable, intelligent, and adaptive data links underwater — where conventional RF-based systems fail. Serving as the key enablers of the Underwater Internet of Things (UIoT), ModemGard modems provide the essential infrastructure for underwater sensor networks, AUV/ROV operations, subsea monitoring, and all forms of underwater data exchange.
The series consists of two models — each purpose-built for different mission profiles:
ModemGard Classic is the first-generation acoustic communication modem developed for reliable underwater data transmission. Operating in the 46 kHz band, it supports BPSK, QPSK, and 8-PSK modulation schemes, achieving data rates between 9.6 kbps and 28.8 kbps with a communication range exceeding 1 km under normal conditions.
Using piezoceramic transducers (140–150 dB TVR, –190 to –200 dB sensitivity) and D-class amplifiers (up to 1000 V output, 300–400 W power), ModemGard Classic delivers robust signal performance even in dynamic marine environments. It features adaptive modulation and error correction to ensure data integrity with at least 10 dB SNR, making it ideal for:
Compact, efficient, and field-proven, ModemGard Classic establishes the baseline communication layer for MarineGard's underwater IoT ecosystem.
ModemGard AI is the next-generation cognitive underwater communication modem, powered by Pattern-Based BVK Modulation (PBCCS) — a proprietary, AI-driven communication system developed by BVK Technology. It dynamically learns and adapts to underwater channel conditions, maintaining reliable communication at SNR levels as low as –10 dB, extending operational range and performance by over 50% compared to conventional PSK modems.
With user-specific adaptive symbol glossaries, ModemGard AI provides built-in encryption, noise resilience, and signal uniqueness, ensuring secure and interference-resistant operation — ideal for defense, industrial, and scientific applications.
Designed as a flexible IP-Core, ModemGard AI can be integrated into software-defined radios (SDR) or FPGA-based systems, enabling scalable deployment in:
By merging machine learning, adaptive signal processing, and BVK's cognitive modulation, ModemGard AI defines the next frontier in underwater communication — transforming the way oceans, sensors, and autonomous systems stay connected.
Together, ModemGard Classic and ModemGard AI form the core enablers of the global Underwater IoT, empowering intelligent sensor networks, subsea automation, and next-generation ocean technologies across defense, research, and commercial sectors.
Contact us to learn more about how our acoustic solutions can benefit your specific maritime requirements.