An Exploration of Power Spectral Density Estimation

“An Exploration of Power Spectral Density (PSD) Estimation” addresses the various methods of dealing with level changes during random vibration testing. This whitepaper introduces iDOF, a PSD estimation method that quickly and accurately estimates the signal PSD faster than the traditional method.

In this whitepaper, you will learn

• How current methods of dealing with level changes lead to over/under-testing
• The correct process for achieving random vibration test accuracy
• How Vibration Research’s iDOF test module resets the average within seconds to give a smooth control line and help to prevent over/under-testing