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天安门城楼区域音响保障难点及解决方案——以庆祝中国共产党成立100周年大会为例
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作者 武晋军 《演艺科技》 2022年第1期38-43,共6页
解析庆祝中国共产党成立100周年大会天安门城楼音响系统的组成,针对系统实施中扩声条件、声学环境、设备性能、与广场扩声兼顾等问题,给出解决方案。
关键词 天安门城楼 音响系统 分区扩声 系统安全 扩声环境 传声器性能 声压级 延时
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Study on the influence of the subsurface buoy's vibration on the vector sensor due to ocean current
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作者 师俊杰 Sun Dajun Lv Yunfei Lan Hualin Mei Jidan 《High Technology Letters》 EI CAS 2014年第3期223-229,共7页
Subsurface buoy systems,especially equipped with the vector sensor,have more and more extensive applications in military and civilian regions.However,their acoustic performances are constrained by the vibration result... Subsurface buoy systems,especially equipped with the vector sensor,have more and more extensive applications in military and civilian regions.However,their acoustic performances are constrained by the vibration resulting from the unavoidable ocean current in some degree.The influence of such vibrations is quantitatively analyzed by means of modeling the simplified models of two deployment configurations involving the positive buoyant buoy and neutral buoy system.The corresponding formulas are deduced respectively for the deployment configuration buoy systems in the motion state firstly.Then the simulation software is developed and some numerical simulations are put up via the Runge-Kutta method.The simulation results and theoretical analysis indicate that the neutral buoy will be an excellent design protocol in engineering application in comparison with the positive buoyant buoy. 展开更多
关键词 subsurface buoy system vector sensor ocean current neutral buoy
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