Sequences with the property of perfect periodic autocorrelation are used in various fields such as communication and radar systems. Various methods were introduced to construct such sequences. Most of these methods concentrated on binary or N-phase sequences. In this paper two methods to construct general phase sequences are introduced. The methods are based upon the properties of the Fourier transform of perfect periodic autocorrelation sequences. The sensitivity of these codes to errors is also elaborated.
- Butler matrix
- Eigenvalue method
- Error sensitivity
- Iteration method
- Perfect periodic correlation sequence