无线体域网中ECG信号Hermite拟合的一种优化算法  

An optimization algorithm of ECG signal fitting based on Hermite function in WBAN

作　　者：李思谊[1] 宋欣[1] 钱良[1] 

机构地区：[1]上海交通大学电子工程系,上海200240

出　　处：《信息技术》2010年第6期61-63,121,共4页Information Technology

基　　金：国家863项目(2007AA01Z237)

摘　　要：心电信号的传输是无线体域网技术中的一个关键技术。提出了一种在无线体域网环境中对ECG信号进行Hermite拟合的优化算法。该方法利用Hermite函数拟合出心电信号,得到拟合参数,并在对信道特征进行估计后将定点化的参数传输。实验结果表明该方法可以很好地拟和出ECG信号的波形,降低压缩比并达到一定的拟和效果,提高ECG信号的检测能力和传输能力。The transmission of ECG signal is one of the key techniques in WBAN.This paper describes an optimization algorithm of ECG signal fitting based on Hermite function in WBAN.This method uses Hermite function to fit the ECG wave shape and to get the fitting parameters,and then transits the quantized parameters in the estimated channel.The result shows that this algorithm can give out the good fitted ECG wave shape and after the quantization the fitting result is also perfect.This can decrease the compression ratio and raise the transmission capability of ECG signal.

关 键 词：无线体域网 ECG信号 Hermite拟合 均方误差 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]