码移参考超宽带收发机及其在WSN环境中的性能分析

介绍了一种新型的基于码移参考技术的超宽带收发机,通过在MATLAB上建模仿真,分析比较了在无线传感器网络应用环境下码移参考超宽带系统的误比特性能。仿真结果表明,采用码移参考技术的超宽带接收机具有比传统的传输参考接收机更好的抗窄带干扰性能,并具有较低的实现复杂度,更适合于无线传感器网络的应用。此外,偏移码字的选择对系统的抗窄带干扰性能有较大影响,采用持续时间短或者随机化特性好的码字,系统的抗窄带干扰能力较强。这些结论为码字的优化设计和系统性能的改进提供了依据。

Code-shifted Reference UWB Transceiver and its Performance Analysis in WSN Environment

A novel ultra-wideband(UWB) transceiver based on code-shifted reference(CSR) was introduced.By modeling and simulation on MATLAB,the bit error performance of the system was analyzed and compared under wireless sensor network environment.It shows that the CSR receiver is more robust to narrowband interference than the conventional transmitted reference(TR) receiver and with a lower complexity.Moreover,simulation results reveal the relation between the shifting codes and the NBI mitigation capacity of CSR-UWB...