Design Of Replaying Software For RF Data Recording System

High-speed development of satellite and radar technology improves the complexity and performance of analyzing testing system. High-speed, high-accuracy and multi-function massive data processing and analysis system is widely applied. Research on massive data instrument which has recording and replay functions will bring out great value.This dissertation introduces the design of large data replaying software of the RF data recording system which has common characteristics.According to the target of the system, design the application UI, multi-view monitoring, mass data file fetch, waveform replay and feature searching function modules, and achieve massive data replay and analysis display by making each module cooperate.This dissertation introduces the design of the UI layout, and the application functions that dynamic loading menu bar, tool bar, floating panel and interactive multi-window. To satisfy the multi-faceted analysis requirement of replay data, software has achieved multi-domain replay analysis and multi-view customizing. To solve the problem of massive data fetch, this dissertation introduces the design of a file fetch algorithm based on memory mapping technology. Also, design a waveform replay unit which has functions that trace rendering, cursor display, FFT spectrum analysis by multi-thread programming and double buffer plotting technology to fetch the effective information, and achieve the selective replay analysis of multi-domain, time locating and events tab query. Besides, to locate the target information efficiently and accurately, design a feature search module, and achieve quick searching, processing and displaying the positive and negative peak, the boundary value, the amplitude from the massive data.Finally, all the functions of software are verified by testing them, and the experiment results prove its effectiveness and practicability.