CAJ | 학술논문

通过向信号源装入波形可以进一步扩展信号源的功能，使其能够实现任意波形的输出。首先将线性调频信号装入信号源，并通过计算机内部的采集卡所采集数据绘制出了实测的波形；然后系统分析了数字下变频及脉冲压缩处理仿真原理；最后，重点对信号源调制到射频的线性调频信号经过收发组件下变频输出的中频信号，以及信号源直接输出的该线性调频信号的波形分别进行脉冲压缩处理仿真。实验表明，在没有信号产生板和脉冲压缩处理板的条件下，能够用该方法来验证收发组件的性能。
통과향신호원장입파형가이진일보확전신호원적공능，사기능구실현임의파형적수출。수선장선성조빈신호장입신호원，병통과계산궤내부적채집잡소채집수거회제출료실측적파형；연후계통분석료수자하변빈급맥충압축처리방진원리；최후，중점대신호원조제도사빈적선성조빈신호경과수발조건하변빈수출적중빈신호，이급신호원직접수출적해선성조빈신호적파형분별진행맥충압축처리방진。실험표명，재몰유신호산생판화맥충압축처리판적조건하，능구용해방법래험증수발조건적성능。
By loading waveform into a signal source,the function of the signal source can be further expanded,thus it can output any kinds of waveforms. Firstly,the linear frequency modulation signal is loaded into a signal source,and the measured waveform is drawn with the data which is acquired from acquisition card in the computer. Then,the simulation principle of DDC and pulse compression processing are generally analyzed. Finally,the pulse compression processing emulation of intermediate frequency signal which is output by frequency conversion of linear frequency modulation(LFM)signal through TR module from signal source to RF and the waveform of LFM output by signal source are conducted respectively. Experiments show that without DDS and pulse compression processing board,the performance of transceiver module can be proved in this way.