Challenges and Countermeasures of Brain Computer Interface Technology Based on Functional Near Infrared Spectroscopy for Aerospace Applications

As a non-destructive optical brain imaging technology, functional near-infrared spectroscopy can be used to construct a brain computer interface (BCI) to identify the operator's limb control intention, and may be applied in future space missions. The principle and system of the BCI based on functional near-infrared spectroscopy technology was introduced firstly in this paper, and then some key technologies such as experimental paradigm, data acquisition, signal processing, feature extraction, classification algorithm for signal features, evaluation technology for space environment adaptability of fNIRS-BCI are discussed, and corresponding countermeasures are given too. At last, from a broad application or engineering perspective, some suggestions such as lightweight & portability, multimodal fusion, database construction, and standard system construction are proposed.