【作者】 周洪煜； 陈治军；

【Author】 Zhou Hongyu Chen Zhijun (School of power engineering Chongqing University Chongqing 400045 China)

【机构】 重庆大学动力工程学院；

【摘要】 基于涡街信号的特性,本文采用基于先验知识的匹配方法构造了新的小波滤波器,它与信号特性直接相关,锁定信号聚集的频带,使得涡街信号所处频率分量的输出增大,用优化后的滤波器对信号进行处理,具有可靠的精度和实时性,通过对实际涡街信号样本的处理分析,证明本文算法是有效、可行的。更多还原

【Abstract】 Based on the property of vortex street,a matching method based on predictive is developed for constructing a new wavelet filter,which is correlate with the original signal directly.The scaling filter locks the frequency band of vortex street,so that the filter output of the interested frequency components increases。The original signal can be processed with optimize wavelet in real time。The experimental results with actual flow signal demonstrate the methods reasonable and effective。更多还原