摘要
根据功能磁共振成像仪(fMRI)测谎脑认知定位成果的指导,启用相应全息耳穴的主动红外信号,利用耳穴信号采集处理系统,串联融合快速傅里叶变换和自相关技术,最近临识别全息耳穴测谎信号。研究结论:①FFT平静特征频率图谱——说谎时频率红移强πHz,诚实则频率绿移弱πHz;②频域自相关系数图谱——呈柳叶状,中心叶脉对应于平静心理,上为说谎,下为诚实,摆动值约为±π。
A novel lie detection technology which is based on holographic ear-acupoint signals’FFT and auto-correlation coefficient is studied. Agilent 54624A oscilloscope and 3isM research-platform are utilized.The conclusions are that focusing on FFT quiet feature fre- quency figure, the feature frequency red-shifts π+ Hz while lying and feature frequency green-shifts π- Hz while honest, focusing on frequency domain auto-corre- lation coefficient figures, they show mind’s eye or willow leaf shape, its center line matches the quiet mind, up-edge line matches lie and down-edge true, the swing-values are about ±π.
出处
《测控技术》
CSCD
2005年第4期67-68,共2页
Measurement & Control Technology
基金
江苏省教育厅自然科学基金资助项目(04KJB310126)
关键词
全息耳穴
测谎
快速傅里叶变换
信号处理
自相关
holographic ear-acupoint
lie detection
FFT
signal processing
auto-correlation