| Popis: |
In this paper, a new definition of PN sequence - sequence pairs was introduced into the spread spectrum communication system. According to the PN sequence's technical requirements, this paper uses genetic algorithms to search hypo perfect sequence pairs between length 40 and length 50, and some results with better correlation function than Gold sequence are found. It also presents a new sequence pairs spread spectrum communication system, the system's performances are fundamentally studied in a simulated system and make a compare with Gold sequence spread spectrum communication system. The results prove that the performances of sequence pairs spread spectrum communication system are better than Gold sequence spread spectrum communication system in some ways. |
