Active Noise-proof Virtual Window Of High-rise Building

Traffic noise has been endangering the health of street residents,the noise mainly through the window come into the room,it can effectively improve the indoor sound environment if reduce traffic noise energy radiation in the room.In addition,taking into account the practical application of the feasibility,because of external sound field is relatively simple this paper selects high-rise building window as a research goal.In summary,this paper studies the virtual window system with high-level active sound insulation without affecting the natural ventilation function of the window.This paper studies the feasibility of adaptive active noise control system as the soundproofing mode of high-rise building windows by studying the characteristics of sound field and the law of traffic noise radiation between high-rise building window and road.As an important part of the adaptive algorithm,this paper illustrates the necessity of secondary path modeling through theoretical analysis,and finds out the main parameters that influence the secondary path modeling through theoretical analysis and simulation research,and then puts forward a reasonable secondary channel Modeling method,the final simulation to verify its accuracy.Select an appropriate experimental site,the use of DSP chip high-speed computing power design active system controller,build a physical simulation platform for physical experiments.According to the characteristics of the controller and the sensor signal acquisition requirements reasonable layout of the various components of the system location,and finally physical experiments verify.