Jacobs J E
Bioelectromagnetics. 1982;3(1):167-77. doi: 10.1002/bem.2250030120.
The impulse response of the pulmonary system has been measured by exciting the system with wideband acoustic noise introduced through the mouth. The transmitted sound is detected using microphones placed on the patient's back at appropriate locations. A specially designed analog correlator is used to obtain the impulse response of the pulmonary system through cross-correlation techniques. Uniquely characteristic responses have been obtained from smoking and nonsmoking patient groups.
通过经口腔引入宽带声学噪声来刺激肺部系统，从而测量其脉冲响应。使用放置在患者背部适当位置的麦克风来检测传输的声音。采用专门设计的模拟相关器，通过互相关技术来获取肺部系统的脉冲响应。已从吸烟和不吸烟患者组中获得了独特的特征响应。
