Fourier Transform Ion Mobility Spectrometry (FT-IMS) is a technique for identifying chemical vapors such as explosives, narcotics, and chemical weaponry. Sandia is currently implementing FT-IMS on a PC running Windows and Labview software. However, the system is too slow and bulky for some applications. The Clinic team has developed a faster, portable system to perform the required signal processing and storage using hardware such as a DSP (Digital Signal Processing chip) and Compact Flash card.