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Related Experiment Video

Updated: Oct 17, 2025

Imaging Plasma Membrane Deformations With pTIRFM

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Detection for ship by dual-polarization imaging radiometer.

Jinlong Su, Hongfei Wu, Pengfei Li

|October 7, 2021

Summary

Passive millimeter wave (PMMW) imagers effectively detect ships from land, even in dense fog. Polarization selection impacts the performance of these W-band imagers for maritime surveillance.

Area of Science:

Remote Sensing
Electromagnetics
Oceanography

Background:

Passive millimeter wave (PMMW) imaging offers a practical solution for target detection.
Maritime surveillance requires robust sensor technologies capable of operating in adverse weather conditions.

Purpose of the Study:

To evaluate the efficacy of a land-based W-band passive polarized imager for ship detection.
To analyze the influence of environmental factors and polarization on detection performance.

Main Methods:

Calculated radiation and atmospheric absorption characteristics using sounding data for a sea area.
Measured W-band radiation characteristics of painted metal.
Conducted ship detection experiments at ranges of 2, 5, and 15 kilometers.

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Main Results:

Demonstrated successful detection and localization of ship targets from over tens of kilometers.
Confirmed the capability of land-based PMMW imagers in thick fog conditions.
Observed that polarization selection significantly affects detection performance.

Conclusions:

Land-based W-band PMMW imagers are highly effective for long-range ship detection in challenging maritime environments.
Polarization techniques can be optimized to enhance PMMW imager performance for maritime surveillance.