This paper laid emphasis on the designing of four-step band pass filter, and gives the detailsofdesign method and debug process.
重点介绍了四阶带通滤波器的设计方法，并给出设计思路和调试方法。
2
This paper lays emphasis on the designing of four-step band pass filter, and gives the detailsofdesign method and debug process.
重点介绍了四阶带通滤波器的设计方法，并给出设计思路和调试方法。
3
This paper introduced the overall design philosophy, demand analyzing, detailsofdesign and development of the PHS real-time charging and accounting system.