The Least Squares Polynomial Fitting Design Denoise Based on the Volume Pulse Wave Detection System
- VernacularTitle:基于最小二乘法多项式拟合的容积脉搏波消噪设计
- Author:
Beibei QI
;
Xiaoming WU
;
Yueshan HUANG
- Publication Type:Journal Article
- Keywords:
volume pulse wave;
denoising;
MATLAB;
least squares polynomial fitting
- From:
Chinese Journal of Medical Physics
2009;26(6):1521-1523
- CountryChina
- Language:Chinese
-
Abstract:
Purpose: Use of BCI clip-on probe for blood volume transmission pulse wave detection, through the signal conditioning amplifier circuit, A/D conversion circuit, microcontroller and interfaces to collected data to the PC. The applications of software filtering to improve hardware filtering. Methods: This article is carried out in MATLAB based on the least squares polynomial fitting of the low-pass FIR filter denoising simulation. Results: Removal of well-frequency and other interference, access to clean pulse volume waveform. Conclusion: To facilitate real-time display in the interface and for the latter part of the feature extraction and parameter calculation
