摘要
针对应用文本软件实现数字滤波器中存在的滤波系数不易调整、与硬件接口程序复杂、开发周期长等问题,根据IIR的设计原理,采用LabVIEW开发平台,完成了该平台下的数字滤波器的设计,将其应用在双通道示波器系统中.经仿真试验证明,该滤波器有效地滤除信号中的尖点和噪声,并且使系统的开发效率提高4倍以上.
To settle the problems in the realization of IIR digital filters by text software, such as adjusting filter coefficient uneasily, complexity of interface program with hardware and long period to develop, Infinite Impulse Response(IIR) digital filter is designed on LabVIEW according to the principle of Infinite Impulse Response. It is used in the Virtual Instrument system of two channel oscillograph to filter the noise within the signal, which can improve the development efficiency of system.
出处
《哈尔滨理工大学学报》
CAS
2003年第6期47-50,共4页
Journal of Harbin University of Science and Technology
