基于平衡Gold码的TH-UWB系统性能分析  

Performance analysis of TH-UWB based on balance Gold code

作　　者：刘衍平[1] 唐春菊[1] 

机构地区：[1]攀枝花学院电气信息工程学院,四川攀枝花617000

出　　处：《信息与电子工程》2012年第3期262-265,共4页information and electronic engineering

摘　　要：针对有码间干扰的跳时脉冲脉位调制超宽带(PPM-TH-UWB)通信系统,为了在不增加系统复杂度的前提下,提高系统抗码间干扰的性能,研究了基于平衡Gold码的Rake接收机的性能,并在IEEE 15.3a UWB信道下对采用平衡Gold码作为跳时序列的Rake接收机和采用传统伪随机序列的Rake接收机的误比特率进行计算机仿真比较,结果表明:采用平衡Gold码作为跳时序列,Rake接收机得到明显改善,而且码间干扰越严重,性能提升越显著。In order to improve the performance of the system resisting to internal symbol interference under the premise of not increasing the system complexity, the performance of Rake receiver based on balance Gold code was studied in Pulse-Position-Modulation Time-Hopping Ultra Wide-Band （PPM-TH- UWB） communication system under the internal symbol interference. The Bit Error Rate of Rake receiver taking balance Gold code as time-hopping code was compared to that of Rake receiver taking conventional pseudo-random sequence as time-hopping code through simulation in IEEE 15.3a UWB channel model by computer. It showed that the performance of the Rake receivers using balance Gold code has been improved significantly compared to that of the Rake receivers using conventional pseudo-random sequence as time-hopping code, and the more serious the internal symbol interference, the more significant the performance improvement.

关 键 词：码间干扰(ISI) 跳时脉冲脉位调制超宽带 RAKE接收机 误比特率 GOLD码 

分 类 号：TN925[电子电信—通信与信息系统]