摘要
在无线人体局域网(WBAN)的系统设计中辐射功率严格受限,信道易受周围电磁环境、人体组织以及人体运动影响,传统同步算法在低信噪比环境下性能较差。针对无线人体局域网的信道特征,提出了基于前导序列频谱特性的同步算法,该算法可以在低信噪比情况下取得稳定的性能,具有一定工程实现的意义。
The transmitting power for wireless body area network（WBAN） is strictly limited.And the wireless channel around human body can be influenced by the environment and the human body.In addition,the traditional time synchronization algorithms have a poor performance in low SNR environment.This paper introduced a synchronization algorithm based on spectral characteristics of the preamble,which can achieve a good performance in the low SNR environment.And it is easy for the engineering implementation in WBAN.
出处
《信息技术》
2010年第6期6-9,共4页
Information Technology
基金
863计划资助项目(2007AA01Z237)
关键词
无线人体局域网
同步
频谱特性
wireless body area network
synchronization
spectrum characteristic
