A NEW METHOD OF PSD ESTIMATION

摘要

It is vital that a random test consistently meets power spectral density (PSD) requirements throughout the test. By nature, random averaging requires time to present intolerance and smooth spectral lines. This article discusses Vibration Research's newly developed method of PSD estimation, iDOF, which provides an accurate and smooth PSD estimate without requiring traditional averaging time. This is the best method available to ensure that a random vibration test meets PSD requirements throughout the test.