| Autor: |
X Q, Sun, B M, Cheetham, K G, Evans, J E, Earis |
| Rok vydání: |
1999 |
| Předmět: |
|
| Zdroj: |
Technology and health care : official journal of the European Society for Engineering and Medicine. 6(4) |
| ISSN: |
0928-7329 |
| Popis: |
This paper is concerned with devising a standard procedure for determining the gain and phase responses of the analogue filters used to pre-process pulmonary signals prior to their digitisation. The customary high-pass filtering, in particular, will strongly affect the time-domain wave-shapes of digitised signals and this must be taken into account when analysing the signals. Several means of determining the effect of the high-pass filtering are investigated and a measurement procedure is proposed which may be easily carried out using simple laboratory equipment. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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