A real-time brain wave analysis system and method are provided for analyzing real-time brain wave data measured by a brain wave measuring device in real time and providing the analyzed brain wave data to a user. The real-time brain wave analysis system includes a brain wave data receiver for receiving brain wave data which is measured and coded by an external brain wave measuring device, a brain wave data transformer for decoding the coded brain wave data which is received by the brain wave data receiver and fast Fourier transforming the decoded brain wave data, a statistic data generator for obtaining time domain mean values and frequency domain mean values with respect to the fast Fourier transformed brain wave data, a multigraph generator for generating a real-time multigraph using the fast Fourier transformed brain wave data, the time domain mean values and the frequency domain mean values, and a multigraph output for outputting the real-time multigraph to a display screen. Through frequency analysis and calculation of frequency band-based mean values as well as time-based analysis of a brain wave, the brain wave is simultaneously shown in the forms of a frequency/time/brain wave three-dimensional graph, a frequency band-based mean value/time two-dimensional graph, and a frequency band-based bar graph, thereby allowing the characteristics of the brain wave to be easily understood in real time.
REAL-TIME BRAIN WAVE ANALYSIS SYSTEM AND METHOD USING FAST FOURIER TRANSFORM