新一代中频检前记录器设计与实现

Design and Implementation of the New Generation of (Digital) IF Pre-demodulation Signal Recorder

由于中频检前信号包含丰富的信息,对于事后数据分析具有重要意义,目前,国内对中频检前记录器的需求呈上升趋势。新一代中频检前记录器不仅仅是作为实时解调器发生故障时的一种备份手段,而且成为了一种重要的数据获取手段。介绍704所研制的新一代中频检前记录器的设计思路与实现方法。

The design and implementation of the new generation of IF pre-demodulation signal recorder is introduced.The multirate digital signal processing technology under undersampling condition is described.Many techniques such as 64 bit PCI bus、RTlinux real-time operating system,and high speed disk array are adopted in the design,and the experimental results is provided.The successful design of the new generation of IF pre-demodulation signal recorder can be used to meet various application demands such as radar scout、satellite simulator and so on.