CATSI features a modular architecture and consists of an optical sensor head mounted on a remotely operated pan & tilt tripod. The sensor can be operated from a local operator console which can operate by itself or via a remote operator console. The instrument power is supplied from an auxiliary power source (batteries) or electrical harnesses and power converter.
The main function of the optical sensor head is to capture the infrared radiation emitted from the scene, resolve the spectral contents of the captured radiation by means of a Michelson interferometer and then transmitting the spectral radiance signal to the control computer for real-time signal processing to chemical agent detection information. The sensor optical head includes a view finder device (color CCD sensor), a input telescope coupled to a FTIR interferometer modulator, a digital compass and integrated black body used for self-calibration of the system.
The CATSI local operator console integrates the control and processing electronics used to remotely operate the optical sensor head with the pan & tilt scanner, and spectral analysis. The local operator console is equipped with a viewer display (night and goggles compatible), an audio and visual alarm system and also includes all the required operator’s controls used to enter GPS coordinates, modify the behavior or setting parameters of the scene scanning pattern, initiate self-test and calibrated the system.