软件数字滤波系统的应用开发

Application and development of Software Digital Filtering Sys-tem.

软件数字滤波系统包括数据采集及数字滤波。系统中的数据采集主要解决系统的数据来源 ,该系统是利用数据采集设备从外部环境采集数据 ,经计算机的串行端口读入内存 ,并对数据进行一定的处理。文章中介绍了软件数字滤波系统的设计思想 。

Software Digital Filtering System(SDFS) includes the data aquisition and digital fitering. The data aquisition of this system mainly solves the problem of data source. This paper intruduces the designation of SDFS and focuse on discussing the method of data aquisition. The data aquisition in SDFS utilises the data aquisition elements to get data from extemal environment and puts them into memory through the serisl port, the data is also processed to some extent, then it uses sofware digtal filtering device to filter and output the data. This method of data aquisition makes use of the inset of inline assemble language in high level language, as a result, the speed of data aquisition is heighented and the utility of this system is enhanced.