Homeland Security Project
ISS recently won a contract to design and implement a new Homeland Security-related product for the United States Department of Defense. The new product consists of a human physiological simulator to be used for the testing of polygraph systems and the training of US polygrapher staff.
The Human Physiological Simulator (HPS) was implemented as a Windows 32-bit Dynamic Link Library (DLL) that exports all the functions necessary to create and modify medical waveform data.
The HPS system achieves realistic medical data through the use of advanced Digital Signal Processing (DSP) algorithms. All of the supported waveforms are implemented as discrete or continuous time and frequency domain DSP models contained in an external XML file so that they can be modified by users. The system is capable of producing almost any waveform, and also supports a highly-sophisticated physiological noise model (not equipment or electrical noise) for extremely realistc data.