Hydraulic pulsation filter technology is a hot research of hydraulic drive applications in recent years. Adaptive filtering, attenua-tion band, attenuation performance and the complexity of the filter structure were parameter in the assessment of filter. Analysis and compar-ison of three types of hydraulic pulse filtering techniques were given： dissipative filtering, resistance filtering, active filtering. Then two kinds of new promising filtering methods were proposed：bionic cochlear basilar membrane structure filtering based on auditory tra...
