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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 Biomedical Signal Sampling Data Software Demodulation Scheme Based on Multimedia Enhanced Instruction Set (MMX) Technology. This method is used in data acquisition systems for electrical impedance multi-frequency (MFEIT) and parametric imaging (EIPT). First of all, the concept and characteristics of MMX are introduced. Secondly, the principle of demodulation of sampled data of MFEIT and EIPT and the key problems when using MMX to demodulate software are described. Finally, the test of application results shows that the introduction of MMX Sample data demodulation enhances the system’s data processing capabilities.