多路PCM遥测实时数据缓冲接口设计

THE DESIGN OF A COMPUTER INTERFACE FOR MULTI-ROUTER PCM TELEMETER REAL-TIME DATA BUFFER ACQUISITION

本文针对多子弹、多目标遥测实时数据处理的要求,设计了一块计算机接口卡。卡上带有4个数据缓冲块,每块设计为乒乓缓冲工作方式,独立地承担一路PCM遥测实时数据缓冲存贮、处理。计算机存取采用存贮器分页、地址映射方式。不仅简化了电路设计、而且读写方便,实时处理性强,各路实时数据接收码率可达1MbPs以上。若相邻通道级联,实时接收码率可成倍地提高,单路接收最高可达4MbPs以上,完全可以满足常规兵器PCM遥测实时数据处理的要求。

Based on the requirement of multi-bullet &. multi-good telemeter realtime data acquisition &. procession. a board of a computer enterface was designed. This board holds four block of data buffers. and each one works in a Ping-Pang buffer operation mode, seperately fulfills processing &. storing of one channel PCM telemeter realtime data. The computer processes in paging memory &. address shadow mode, not only stapling circuit design, but also reading &. writing eary. The rate of real-time ecquisition for each one channel is over 1 MbPs. If casading each other channel, the rate of acquisition. incseases folderly, the highert rate of one channel acquisition is over 4 MbPs- This completely fits the requinement of regular arm PCM telemeter real-time dater acquisition &. procession