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统计能量法预测铁路声屏障的降噪效果 被引量:4
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作者 王绍笳 高淑英 《西南交通大学学报》 EI CSCD 北大核心 2001年第6期645-647,共3页
用统计能量分析 (简称SEA)来预测铁路声屏障的降噪效果 ,并针对某一有声屏障的铁路段进行SEA建模。模型包含列车车体与声屏障之间的声空间以及声屏障 2个子结构。
关键词 噪声控制统计 能量法 声屏障 铁路 噪声预测 振动能量 声场衰减理论
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Design and Analysis of a Gain-scaling Controller Applied to a Chain of Integrator System with Measurement Noise on Feedback Sensor
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作者 Jae-seung YOUN Hyun-do KIM Ho-lim CHOI 《Journal of Measurement Science and Instrumentation》 CAS 2010年第4期376-379,共4页
A control problem of a chain of integrator system with measurement noise on feedback sensor is considered. We propose a gain-scaling controller for compensating measurement noise of feedback sensor. Because control sy... A control problem of a chain of integrator system with measurement noise on feedback sensor is considered. We propose a gain-scaling controller for compensating measurement noise of feedback sensor. Because control systems operate via feedback sensor's signal, the measurement noise in sensor' signal results in performance degradation or even system failure. Therefore, control systems often demand on compensating measurement noise. Our controller is equipped with a compensator and gain-scaling factor in order to reduce the effect of measurement noise on feedback sensor. 展开更多
关键词 meant noise gain-scaling factor chain of integrator system
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