心音采集的虚拟仪器源代码，是基于计算机声卡的，里面有心音信号和频谱分析等。
Virtual Instrument Collection phonocardiogram source code, is based on the computer sound card, which determined the sound signal and spectrum analysis.
实验结果表明，不同时频尺度的STFT分析可以很好地描述正常心音信号的时域和频域特征。
The results we obtained on normal PCG signal show that the STFT analysis with different scale basis provides a clear comprehension of the cardiac events in both time and frequency domain.
心音信号是一种典型的非平稳信号，短时傅立叶变换(STFT，又称窗口傅立叶变换)是用于对非平稳信号进行时频分析的有效工具。
Heart sound is a highly nonstationary signal, and the Short-time Fourier Transformation (STFT) is an effective method for this kind of signal to be analysed.
采用小波分析方法对胎儿心音信号进行处理是一种尝试，得到的结果基本上令人满意。
Adopt wavelet transform to analysis and process the signal of heartbeat sound is a kind of trail, and the result that get is basic to ascend to give satisfaction.
分析了心音信号的产生机理、信号成分及心音的临床诊断价值。
The generation mechanism, compositions and clinical diagnostic value of the heart sound signals are analyzed.
为了弥补传统阈值函数在消噪过程中存在的不足，得到高信噪比的心音信号更好地进行心音分析，本文提出一种新的阈值函数。
To compensate for the deficiencies of traditional threshold functions and obtain the heart sound with high SNR for better analysis, a novel threshold function was proposed in this study.
为了弥补传统阈值函数在消噪过程中存在的不足，得到高信噪比的心音信号更好地进行心音分析，本文提出一种新的阈值函数。
To compensate for the deficiencies of traditional threshold functions and obtain the heart sound with high SNR for better analysis, a novel threshold function was proposed in this study.
应用推荐