摘要
目的 研究能够抑制非接触生命参数检测系统因自抖动而产生的干扰对生命参数信号检测的影响的技术 .方法 选用加速度传感器提取出检测系统的自抖动干扰 ,作为参考信号 ,采用自适应信号处理技术 ,研究对系统自抖动干扰抑制效果 .结果 对叠加有系统自抖动干扰的信号进行自适应处理 ,可提高信噪比 (约 40 d B) ,提取出有用信号 .
AIM To find a technology for restraining the interference produced by self dithering of the system for detecting life parameters. METHODS By selecting the acceleration sensor to extract the self dithering interference of the system, which was treated as the referring signal, we used the technology of adaptive signal processing to see effect of restraining the self dithering interference. RESULTS The technology of adaptive processing improved the signal to noise ratio (SNR) up to 40 dB of mixed signal with self dithering interference of the system and helped to extract the useful signals. CONCLUSION The technology of adaptive signal processing used for restraining the self dithering interference of the system is effective and feasible.
出处
《第四军医大学学报》
北大核心
2002年第4期376-378,共3页
Journal of the Fourth Military Medical University
基金
高等学校骨干教师资助计划资助
第四军医大学创新工程资助项目(CX99F0 10 )
