Design Of The New Predetection Record And Playback System

Multi-objective comprehensive measurement system predetection record data is theuse of the software approach to post-playback, the intention is repeated playback, theapplication of different algorithms to improve data quality and accuracy ofmeasurements outside, but with longer playback times recorded data, making missiondata processing cycle is greatly extended, resulting in greater protection to theexperiments the pressure; In addition, after the data after the playback quality issometimes poor, making the multi-objective comprehensive measurement system;sefficiency by more significant impact.In this paper, the time of playback current multi-objective comprehensivemeasurement system predetection record data is too long resulting in difficult andplayback issues such as poor quality data are analyzed and discussed, and according tothe prosecution before the recorder works and mission requirements, research anddesigned a new type of seizure before the recording playback system. Mainly uses themethod developed by a hardware check before recording and playback card, the signalconditioning module, signal conditioning modules to complete4-channel70MHz IFinput signal of the AGC control; record board to complete4-channel playback70MHzIF signal and1channel B code signal acquisition, recording and playback,470MHz IFoutput signal filtering, amplification and conditioning level, thus making theself-contained recording playback, enabling examination of data recorded before therecording and playback.Playback recorded before the new inspection system can check the data before theplayback time of recording1:1ratio, to improve the ability of participantscomprehensive range equipment has very important significance.This design of a newexamination before the playback system has been applied in the range, the experimentalresults verify the feasibility and effectiveness of the system, and in practice has stoodthe test of a growing number of tasks.