Experimental study on effects of different breathing modes on separation of bioradar signals
10.7687/J.ISSN1003-8868.2015.09.038
- VernacularTitle:不同呼吸模式对雷达信号分离影响实验研究
- Author:
Jing ZHANG
;
Qian LIU
;
Hua ZHANG
;
Guohua LU
;
Jianqi WANG
- Publication Type:Journal Article
- Keywords:
breathing mode;
bioradar;
self-adaptive filtering;
signal separation
- From:
Chinese Medical Equipment Journal
2015;(9):38-40
- CountryChina
- Language:Chinese
-
Abstract:
To separate the biological radar echo signals in different breathing modes. Echo signals of bioradar-based vital signs monitoring system were acquired in different breathing modes, and an improved signal separa-tion algorithm was used to obtain respiratory and heartbeat signals as well as their parameters. Under two breath-ing modes, the center frequencies of the signals from the self-adaptive filter were kept consistent with those of heartbeat signals, and the signals with other frequencies were suppressed effectively. The algorithm can be used to sep-arate heartbeat signals while suppress other interference signals effectively. ZHANG Jing and LIU Qian are the first au-thors who contributed equally to the article.
