信号采集脉冲压缩处理仿真与应用研究  

Simulation and application research of signal acquisition and pulse compression processing

作　　者：薛卫东[1] 

机构地区：[1]陕西长岭电子科技有限责任公司产品开发部,陕西宝鸡721006

出　　处：《现代电子技术》2013年第19期52-54,共3页Modern Electronics Technique

摘　　要：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。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.

关 键 词：矢量信号源 收发组件 脉冲压缩 MATLAB仿真 

分 类 号：TN958.334[电子电信—信号与信息处理]