A Tester For Frequency Response Characteristic Based On DDS

This article summarized the present frequency characteristicreflectoscope reflector development situation, analyzed the frequencycharacteristic reflectoscope reflector market presently, introduce the frequencycharacteristic concept and the frequency characteristic two tests method, hascarried on the analysis to the frequency characteristic reflectoscope reflectorbasic principle, proposed acted according to the DDS theory based on theDDS frequency characteristic reflectoscope reflector design side, designed thereflectoscope reflector with FPGA to sweep the frequency supply oscillator,designed the reflectoscope reflector host with the AT89C52 monolithicintegrated circuit to control the part, was high reliable, the high speedcharacteristic FPGA and the monolithic integrated circuit good data processingand the control management ability unifies, enable the overall system to havethe good performance, And has carried on the analysis to the entirereflectoscope reflector parameter, carried on to some electric circuits hasrepeatedly debugged with changes also proposed causes system integrationplan which the systematic price compared further enhances.