Sideband Cursors

The new release of RotatePLUS has a feature called "Sideband Cursors". These cursors overlay your data to help you identify families of harmonics imbedded in your data.

The animated image here shows how the sideband cursors are used to identify two families of harmonics. The first part of the animation shows the center of the sideband cursor group being lined up on order 30.72. Then the animation shows the sideband cursor positioned to identify the first family of harmonics at a differential of .850 of an order. Then the sideband cursor is moved again to line up with the second family of harmonics at .788 of an order.

Thus you can easily see how two families of harmonics are quickly identified using the sideband cursors. If the harmonic families are obscured by noise or amplitude dominant unrelated orders, the Millstrum (inverse Cepstrum) analysis may give the desired answers.