The Research For The Construction Method Of ZCZ Sequence Set And ZCZ Sequence Pair Set

The perfect discrete signal and its design method play an important role in the optimizing design in the area of modernistic communication, radar, sonar, navigation and electronically antagonism systems.A number of important results on research of the perfect discrete signal are printed during decades development of the research.The third generation communication system(3G) are based on the multiple access technology,and multipath interference and multiple access interference need to be eliminated in multi-user wireless communication system.So the demand of quantity and quality of spreading codes is increasing, which makes us have to find ways to increase the survived space of spreading code of the pefect performance. The construction of the sequence or the sequence pairs in this article,is mainly based on the iterative method and the interleaving technique, the main work as follow:First,the concept of ZCZ complement sequence set is presented for multi-carrier code division multiple accesscommunication systems.The set has more subsequences and more correlation than traditional sequence set,then has stronger ability to resist multi-path interference and multiple access interference. From set view,the set of ZCZ complement sequence and related definitions are proposed.In this article,the method of construction of ZCZ complement sequence set which make use of interleaving technique based on complement sequence and orthogonal matrix is proposed,and the poof and examples given.Secondly, the introduction of the concept and definition of difference set pair, pefect binary sequence pairs and shift sequences are produced by difference set pairs, and then initial iteration sequence pairs which constructed from Hadamard matrix form a longer length the ZCZ sequence pair through iterative technique, at last proof, performance analysis and examples of it given. Finally, in the construction of ZCZ sequence pairs, the concept of the orthogonal matrix pair is applied. The construction of orthogonal matrix pair is proposed by method which based on pefect binary sequence pairs,and then comprehensive application of the methods of interpolation, concatenation, interleaving,iterative,then more subsequences and pefect correlation ZCZ sequence pairs are constructed from orthogonal matrix pair;the method of the construction of ZCZ sequence pair based on difference set pairs is simplified by orthogonal matrix pair,and at last proof, performance analysis and examples of it given.