Enhanced MMW and SMMW/THz imaging system performance prediction and analysis tool for concealed weapon detection and...

Area of Science:

• Electromagnetic spectrum imaging
• Sensor system modeling
• Applied physics

Background:

• Millimeter-wave (MMW) and submillimeter-wave (SMMW)/terahertz (THz) imaging systems are crucial for security and navigation.
• Previous models (2005, 2007, 2011) analyzed MMW/THz system performance but required further enhancements.
• Accurate prediction tools are vital for optimizing system design and operational effectiveness.

Purpose of the Study:

• To present a comprehensive review of a newly enhanced MMW and SMMW/THz imaging system analysis and design tool.
• To detail improvements in noise modeling, image processing, and backscatter analysis.
• To outline future expansion plans for the predictive capabilities of the analysis tool.

Main Methods:

• Development of an improved noise submodel for enhanced accuracy and reliability.
• Incorporation of capabilities to account for post-capture image contrast enhancement.
• Integration of methods to analyze concealment material backscatter in active illumination systems.

Main Results:

• The enhanced tool provides more accurate and reliable performance predictions for MMW and SMMW/THz imaging systems.
• The model now effectively incorporates post-capture image processing effects.
• Analysis of concealment material backscatter has been successfully integrated for active illumination scenarios.

Conclusions:

• The enhanced analysis and design tool offers significant improvements for MMW and SMMW/THz imaging system development.
• The updated model supports more robust performance predictions for diverse operational conditions.
• Further model expansion will continue to advance the capabilities of these critical imaging technologies.