摘要
混沌系统在通信系统和类周期弱信号检测中有着广泛应用,但在复杂信号的检测中应用并不多。一种用于检测心电图信号的混沌系统和Simulink模型被给出,实验仿真结果表明通过分析比较几种典型ECG信号通过系统后的输出相图的差异可以对心电图信号进行直观检测。相空间重构结果表明通过对原始心电图信号及其对应的系统输出数据相空间重构得到的混沌特征参数进行分析比较,可以对心电图检测提供理论支持。
The chaotic system is widely used in communication system and the detection of weak periodic signals.However,it is rarely used in the detection of complex signals.A chaotic system and its corresponding Simulink model for the detection of ECG signals are presented.The simulation results show that the ECG signals could be detected intuitively througth the difference of the system output phase diagrams.The results of phase space reconstruction of each ECG sequence and its responding output phase diagram after each ECG sequence being input into the chaotic model show that the ECG signals could be detected througth the characteristics of chaotic parameters of each ECG sequence and its responding output phase diagram sequence.
出处
《通信技术》
2011年第2期125-127,共3页
Communications Technology
基金
国家自然科学基金项目(批准号:61071214)
中电集团36所通信系统信息控制技术国家级重点实验室资助项目
关键词
心电图
混沌检测
相空间重构
electrocardiogram（ECG）
chaotic detection
phase space reconstruction
