截短后平衡的扩频码搜索方法  

A Method of Searching for Intercepted Balanced Sequences

作　　者：董磊[1] 卢晓春[2] 王新梅[1] 许卫东[1] 

机构地区：[1]西安电子科技大学ISN国家重点实验室信道编码实验室,陕西西安710071 [2]中国科学院国家授时中心,陕西西安710600

出　　处：《时间频率学报》2006年第2期128-133,共6页Journal of Time and Frequency

摘　　要：为了能够高效地找出平衡的扩频码(平衡性的扩频码有较好地抑制载波的性能),研究了一种不交叠平衡性扩频码字的搜索方法。在这种方法中,首先生成母码,然后计算、查找平衡不交叠的子码。该方法在计算平衡码时与其它方法有相同的时间复杂度。计算机仿真表明,该母码生成方法较为高效。在采用分割方法后,搜索过程得到了进一步的优化。For detecting the balanced sequences which is helpful to restrain the carrier, a new algorithm of searching for the non-overlapping balanced sequences is investigated in this paper. For this method, firstly, the base code is generated. Secondly, the non-overlapping balanced sequences are calculated and looked up. The time complexity of the method of calculating the balanced sequences is same as others. The simulation conducted with computer shows that the algorithm of generating the base code is more effective than others. The searching process is optimized when the method to divide up the sub-codes is adopted.

关 键 词：扩频 平衡码 搜索 

分 类 号：TN914.42[电子电信—通信与信息系统]