SBIR-STTR Award

Mobilisa and subcontractor Mikros Systems propose to develop the RHAZ analysis tool based on Mobilisa's software package known as AIRchitectr, which already implements several of the key functions required. AIRchitectr was originally developed to model wireless networks onboard US Navy vessels, and incorporates advanced algorithms to simulate RF propagation, model 3D environments and determine ambient RF power levels. The key objective of the proposed program is to modify the baseline AIRchitectr software to provide the additional functionality required for RF hazard analysis. Two types of upgrades will be required. First, the AIRchitectr "front-end" software, which simulates RF propagation, will be enhanced to support geographical and structural models of the environment, and to incorporate indoor/outdoor RF propagation. Second, additional "back-end" code will be developed to implement dosimetry algorithms based on applicable standards and methods (such as IEEE C95.1 and the RFR Dosimetry Handbook). User feedback will be provided using color-coded signal intensity maps and recommended safety actions. The RHAZ Analysis Tool will be developed using standard interfaces and modular methods to accommodate a range of dosimetry methods, and will be able to compare predicted results with empirical survey results to validate operation.

Keywords:
Radiation, Hazard, Personnel, Ray Trace, Spectrum Analysis, Dosimetry, Closed-Loop, Rf

Mobilisa proposes the creation of a tool which runs on a standard PC and provides users with a straightforward and standardized way of detecting and evaluating safety hazards in test and operational scenarios; similar in scope to the current Integrated Laser Hazard Assessment (LHAZ) program. The implementation will be based on our AIRchitect® software, an RF design tool based on ray-tracing techniques, combined with 3D visualization as implemented in the OpenGL graphics standard. The Phase I Proof of Concept showed that not only was it possible, but that this particular implementation was desirable due to the as-built algorithm enhancements within in the AIRchitect® software. Mobilisa proposes to expand the development of the RHAZ tool into a fully functional expert system for use by safety and medical personnel. Implementation will be fully three-dimensional in both function and visualization, and include the full RF spectrum. The design of the expert system will be such that a common user will be able to import a drawing of the area under investigation, select from a short drop-down list of building materials, select and locate RF radiating systems from a joint database, and the tool will then calculate and display hazard areas.

Keywords:
Radiation Hazard, Rhaz, Ray-Tracing, Dosimetry, Rf, Expert System, Airchitect