说明：  尽管低通滤波器在现代电子学领域的地位越来越重要，但其设计及定型工作仍是冗长乏味且耗时巨 大的。FilterPro程序设计用于辅助低通滤波器设计，以实现多反馈(MFB)及Sallen-Key拓扑。本报告可作 为FilterPro操作指南，同时还包括了其他方面的问题，记述了设计人员涉足该程序的必备信息以及程序 所交付的功能。
(Despite the low-pass filter in the field of modern electronics is becoming more and more important, but its design and type of work is still tedious and time-consuming enormous. FilterPro procedures designed for supporting low-pass filter design, in order to achieve multiple feedback (MFB) and Sallen-Key topology. FilterPro this report can serve as operational guidelines, but also includes other aspects, the designer describes the procedures involved in the procedures necessary to deliver information and functions.)