Abstract:

With the development of science and technology, more and more physiological signal analysis devices have been applied in medical fields, which can effectively enhance people’s health. The assessment and testing verification of medical devices face challenges such as high technical complexity and long cycles. Therefore, physiological signal generators have become a hot topic for research and development in recent years. These devices are designed for the functional performance testing and calibration of physiological signal analysis devices, and thus have extremely high application value. There is currently a lack of summary of physiological signal simulators from the principle to the technical solution in the field, and there is a great difference between different physiological signals. Therefore, this paper first systematically elaborates the characteristics of physiological signals, the architecture of physiological signal simulators and the principles of their sub-modules. Then, it compares and analyzes the design schemes and application scenarios of mainstream signal generators. Finally, it systematically reviews the implementation schemes and innovation points of existing physiological signal simulators, providing some reference for the research and application of physiological signal simulators.

Key words: physiological signals, signal generator, testing