一种差分传输参考直扩超宽带系统的实现方案  

An implementation Scheme for DTR-DS-UWB Communication System

作　　者：康荣宗[1] 刘洛琨[1] 张剑[1] 汪涛[1] 

机构地区：[1]解放军信息工程大学信息工程学院,河南郑州450002

出　　处：《通信技术》2007年第12期4-6,共3页Communications Technology

基　　金：国防预研基金资助项目(110010304)

摘　　要：文中提出了一种差分传输参考直扩超宽带系统的实现方案。该方案利用接收信号的前一个码元作为本地参考信号,解差分恢复出扩频序列,然后通过数字匹配滤波器完成PN码的相关匹配来实现同步捕获,而后采用类似方法解调实现信息恢复。通过对系统的同步性能及其误码率性能进行分析和仿真试验,结果表明该方案不仅可以实现快速的同步捕获,并且具有复杂度低、占用资源少等优点。This paper proposes an implementation scheme for DTR-DS-UWB communication system. It uses the former code of the received signal as the local reference signal for demodulating the differential signal to acquire the PN code, and then accomplishing the acquisition stage with the matching filter idea to achieve the PN code matching correlation, and implementing the demodulation for information recovery in the similar way. Numerical simulations are performed to verify the acquisition performance of this scheme under the outdoor environments; it shows that this scheme can achieve the rapid acquisition, is simple in receiver structure, and demands less resources in implementation.

关 键 词：超宽带通信系统 同步捕获 差分传输参考 直接序列扩频 

分 类 号：TN911[电子电信—通信与信息系统]