摘要
设计了一个长周期扩频序列码。在研究扩频通信PN码设计原理的基础上,参考P码设计方法,提出一种长周期扩频序列码的设计方法。该方法利用多个m序列的输出进行截短,利用非线性组合方法加大了码的复杂性和扩展了码的长度。实验结果表明,在同样长度下,采用该方法产生的码与P码相关特性接近,10.23 MHz时钟下的周期达5年以上。
A spread spectrum sequence code with long period is designed.A design method for generating spread spectrum code with long period is carried out based on the principle of PN code and design method of P code used in spread spectrum communication system in general.The length and complexity of the code are expanded by truncating output and non-linear combination of several m sequences.The simulation results show that the correlation of the code generated by this method is near to that of P code,and the period of it is more than 5 years under the condition of clock of 10.23 MHz.
出处
《现代电子技术》
2010年第11期62-64,共3页
Modern Electronics Technique
关键词
扩频码
截短
非线性组合
相关性
spread spectrum code
truncating
non-linear combination
correlation
