A second periodic signal originates from the rotation of the white dwarf spinning on its axis.

All three periodic signals may be measured by taking a fourier transform of the light curve and producing a power spectrum.

The pulsar provides a strong periodic signal that is used to check the timing of the X-ray detectors.

The Fourier transform of a periodic signal only has energy at a base frequency and its harmonics.

Another way of saying this is that a periodic signal can be analyzed using a discrete frequency domain.

In a periodic signal, the fundamental frequency is the inverse of the period length.

These algorithms can give quite accurate results for highly periodic signals.

Through 10 trials, the false alarm probability was found to be 0.44%, low enough for it to be included as a periodic, planetary signal.

This makes it possible to efficiently code periodic signals, such as voiced sounds.

As of now, I cannot find any other periodic signals in the data.