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JASCO Applied Sciences 新闻·· 2026-03-16精选

JASCO 用 SeaTrac SP48 无人艇完成三次被动声学监测海试

JASCO advancing Passive Acoustic Monitoring via Unmanned Surface Vehicles

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JASCO 在 Massachusetts 和 Rhode Island 外海以 SeaTrac SP48 无人水面艇为平台完成三次被动声学监测海试，时间分别为 2024 年 12 月 14 日、2025 年 2 月 20 日和 2025 年 3 月 10 至 11 日。

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来源：JASCO Applied Sciences 新闻 新闻稿 · 原文

Three field trials were conducted off Massachusetts and Rhode Island using SeaTrac SP48 USV as the host platform:

  • Trial 1 – December 14, 2024 (Marblehead, MA)

  • Trial 2 – February 20, 2025 (Marblehead, MA)

  • Trial 3 – March 10–11, 2025 (Point Judith, RI)

JASCO’s proprietary dipping system operates similarly to a sonobuoy. The USV is piloted to a target monitoring area, set to drift, and the collapsible array is deployed through the vessels’ moonpool in the SP48 by the winch. Once the array reaches target depth, the arms expand to form a spatial array with the hydrophones.  The winch then compensates for vessel motion to hold the hydrophones nearly motionless.

When the USV drifts out of the target zone, the array is retrieved back into the moonpool where it is streamlined and protected from heavy seas before the USV return to the deployment location.

Typically, hydrophones suspended from surface platforms such as boats or buoys experience motion from waves that can contaminate the acoustic data to a point where it is unusable except for very loud noises at higher frequencies. A key innovation with this system is the proprietary heave compensation method which effectively isolates the hydrophones in the collapsible spatial array from the USV motion at the surface.

As the result, the system offers operational capabilities similar to sonobuoys, while remaining reusable and suitable for long-duration deployments.

Technology Validation & Maturity Progression

The results demonstrated that:

  • The sprint-and-drift operational concept is effective for acoustic monitoring operations, and the heave compensation system was quiet.

  • Acoustic performance above 125 Hz met operational expectations in test conditions.

  •  Testing across multiple trials enables refinements that reduced low-frequency system noise.

  • Real-time connectivity enables data access, system diagnostics, and remote configuration.

  • Bearing estimation can be achieved without left-right ambiguity.

The trials also identified targeted engineering enhancements to further improve array stability, deployment reliability, and acoustic noise floor performance — advancing the system toward higher technology readiness.

Scalable Applications Across Civil and Defence Domains

JASCO’s dipping acoustics system is a flexible acoustic platform capable of supporting:

来源：JASCO Applied Sciences 新闻 · jasco.com