基于多媒体增强指令集的采样数据解调方案

Sampled data demodulation solution based on multimedia extensions technology

一种基于多媒体增强指令集(MMX)技术的生物医学信号采样数据软件解调方案。这种方法在用于电阻抗多频(MFEIT)及参数成像(EIPT)的数据采集系统中得到了应用。首先,介绍了MMX技术的概念和特点;其次,阐述了MFEIT和EIPT的采样数据解调原理及应用MMX技术进行软件解调时的关键问题;最后,对应用结果的测试表明,将MMX技术引入采样数据解调增强了系统的数据处理能力。

A novel sampled data software demodulation solution for biomedical signal acquisition based on Multimedia Extensions(MMX)technology is introduced in this paper.It is applied to the data acquisition systems for Multi-frequency Electrical Impedance Tomography(MFEIT)and Electrical Impedance Parameter Tomography(EIPT).The concept and features of MMX technology are presented.The sampled data demodulation scheme and method adopting MMX technology are described.The application result shows that MMX technology introduced in the demodulation enhances the data processing capacity of the system.