摘要
利用雷达式非接触检测系统可检测到生命参数信号(呼吸、心动等信号)。针对呼吸、心动信号频谱有重叠的特征,采用自适应LMS算法对信号进行相关噪声抵消处理,从而获取较为理想的心动信号。实验研究分析及实测结果表明该算法简易、实用。
Life-parameter signals such as respiration and heartbeat can be obtained through a radar non-contact detecting system. According to the overlap of the respiration and heartbeat frequency spectra, an adaptive LMS algorithm has been adopted to reduce the correlative noise and to form a more ideal heartbeat waveform. The experimental research and the testing results show that the algorithm is simple and practical.
出处
《中国医疗器械杂志》
CAS
2003年第1期21-24,共4页
Chinese Journal of Medical Instrumentation
基金
国家自然科学基金资助项目(60171021)
关键词
LMS算法
生命参数
噪声抵消
LMS algorithm, life-parameter, noise cancellation
