-
1.发明授权SYSTEM AND METHOD FOR SIMULTANEOUSLY CONTROLLING SPECTRUM AND KURTOSIS OF A RANDOM VIBRATION 有权系统和方法对频谱和峰度非周期性振动的同时控制
公开(公告)号：EP1766358B1
公开(公告)日：2011-06-22
申请号：EP05803744.1
申请日：2005-07-05
IPC分类号： G01M7/02
摘要： A system and method for producing and controlling a random signal with simultaneous control of both the power spectral density (PSD) and kurtosis (100) where a controlled signal is measured from a transducer, and converted to a PSD (111) using a Fast Fourier Transform (FFT). The measured PSD is compared (117) with a reference PSD (121) where an adaptive filter (119) is updated to compensate for the error. Simultaneously the kurtosis of the measured data is computed (125) and compared to a reference kurtosis (123). A feedback control loop (127) is employed to adjust the kurtosis of a white noise random generator with variable kurtosis (101). This white noise is then filtered by the adaptive filter (119) to provide the output signal used to drive the control process.
-
2.发明公开SYSTEM AND METHOD FOR SIMULTANEOUSLY CONTROLLING SPECTRUM AND KURTOSIS OF A RANDOM VIBRATION 有权系统和方法对频谱和峰度非周期性振动的同时控制
公开(公告)号：EP1766358A1
公开(公告)日：2007-03-28
申请号：EP05803744.1
申请日：2005-07-05
IPC分类号： G01M7/02
摘要： A system and method for producing and controlling a random signal with simultaneous control of both the power spectral density (PSD) and kurtosis (100) where a controlled signal is measured from a transducer, and converted to a PSD (111) using a Fast Fourier Transform (FFT). The measured PSD is compared (117) with a reference PSD (121) where an adaptive filter (119) is updated to compensate for the error. Simultaneously the kurtosis of the measured data is computed (125) and compared to a reference kurtosis (123). A feedback control loop (127) is employed to adjust the kurtosis of a white noise random generator with variable kurtosis (101). This white noise is then filtered by the adaptive filter (119) to provide the output signal used to drive the control process.
-
搜索结果
2 条记录 (耗时 0.008 秒)
