Hennes M L, Stinnett H O
Dept. of Physiology, Univ. of North Dakota, Grand Forks.
Biomed Sci Instrum. 1992;28:145-50.
An advanced microcomputer based process control and instrumentation system was developed for real time frequency analysis of the viscoelastic relationships between the carotid sinus wall and indwelling baroreceptors. A 486 based AT bus microprocessor running data acquisition and visualization software was customized providing a virtual instrument for data collection, display, and recording. A full complement of signal processing algorithms was developed for the collection of large time sampled data sets and their conversion to the frequency domain for analysis. Polynomial curve fitting procedures were used for transfer function estimation of wall viscoelastic properties. Simulated in situ sinus data was collected and analysis was used to test the methodology.
开发了一种基于先进微型计算机的过程控制和仪器系统，用于实时分析颈动脉窦壁与植入式压力感受器之间的粘弹性关系。定制了一个基于486的AT总线微处理器，运行数据采集和可视化软件，提供了一个用于数据收集、显示和记录的虚拟仪器。开发了一整套信号处理算法，用于收集大量时间采样数据集并将其转换到频域进行分析。采用多项式曲线拟合程序来估计壁粘弹性特性的传递函数。收集了模拟原位窦数据，并进行分析以测试该方法。
