1. This makes it possible to efficiently code periodic signals , such as voiced sounds. 2. These algorithms can give quite accurate results for highly periodic signals . 3. In a periodic signal , the fundamental frequency is the inverse of the period length. 4. An "'active-filter tuned oscillator "'is an active electronic circuit designed to produce a periodic signal . 5. A second periodic signal originates from the rotation of the white dwarf spinning on its axis. 6. KZFT filter is design for a reconstruction of periodic signals or seasonality covered by heavy noise. 7. The Fourier transform of a periodic signal only has energy at a base frequency and its harmonics. 8. With periodic signals like Morse code, or signals on the fringe of reception, this was a difficult process. 9. Another way of saying this is that a periodic signal can be analyzed using a discrete frequency domain. 10. The repetitive control system has been proven to be a very effective and practical method dealing with periodic signals .