Eight-phase sequence sets design for radar
WSEAS Transactions on Signal Processing
New algorithms for designing unimodular sequences with good correlation properties
IEEE Transactions on Signal Processing
Autocorrelation properties of OFDM timing synchronization waveforms employing pilot subcarriers
EURASIP Journal on Wireless Communications and Networking - Special issue on synchronization in wireless communications
| Hi-index | 754.84 |
Low autocorrelation for sequences is usually described in terms of low base energy, i.e., the sum of the sidelobe energies, or the maximum modulus of its autocorrelations, a Barker sequence occurring when this value is ≤ 1. We describe first an algorithm applying stochastic methods and calculus to the problem of finding polyphase sequences that are good local minima for the base energy. Starting from these, a second algorithm uses calculus to locate sequences that are local minima for the maximum modulus on autocorrelations. In our tabulation of smallest base energies found at various lengths, statistical evidence suggests we have good candidates for global minima or ground states up to length 45. We extend the list of known polyphase Barker sequences to length 63.