中国医疗设备
中國醫療設備
중국의료설비
CHINA MEDICAL EQUIPMENT
2015年
4期
25-27
,共3页
Labview2014%心音信号%瞬时频率%能量图谱
Labview2014%心音信號%瞬時頻率%能量圖譜
Labview2014%심음신호%순시빈솔%능량도보
Labview2014%heart sound signals%instantaneous frequency%energy spectrum
目的：利用信号处理手段对心音信号进行分析，为医生诊断心音相关心脏疾病提供客观依据。方法基于Labview2014开发平台对心音进行瞬时频率分析，给出其能量图谱以及瞬时频率曲线。结果正常与异常心音的瞬时频率曲线及功率谱有明显差异。结论经试验验证，该方法能够准确描述正常与异常心音的频率差异，使医生能够便捷、高效地诊断心音相关心脏疾病。
目的：利用信號處理手段對心音信號進行分析，為醫生診斷心音相關心髒疾病提供客觀依據。方法基于Labview2014開髮平檯對心音進行瞬時頻率分析，給齣其能量圖譜以及瞬時頻率麯線。結果正常與異常心音的瞬時頻率麯線及功率譜有明顯差異。結論經試驗驗證，該方法能夠準確描述正常與異常心音的頻率差異，使醫生能夠便捷、高效地診斷心音相關心髒疾病。
목적：이용신호처리수단대심음신호진행분석，위의생진단심음상관심장질병제공객관의거。방법기우Labview2014개발평태대심음진행순시빈솔분석，급출기능량도보이급순시빈솔곡선。결과정상여이상심음적순시빈솔곡선급공솔보유명현차이。결론경시험험증，해방법능구준학묘술정상여이상심음적빈솔차이，사의생능구편첩、고효지진단심음상관심장질병。
Objective To analyze the heart sound signals through signal processing methodology so as to provide objective foundations for physicians to diagnose the heart-sound-related heart diseases. Methods Based on Labview2014, the instantaneous frequency of heart sound was analyzed to obtain the frequency spectrum and the curve of instantaneous frequency. Results The differences between normal and abnormal heart sound was signiifcant in the aspects of the frequency spectrum and the curve of instantaneous frequency. Conclusion This methodology had proven its accuracy in the veriifcation test in revealing differences between normal and abnormal heart sound, which contributed to convenient and efifcient diagnosis of heart-sound-related heart diseases for physicians.
