数字射频存贮器信号重构的性能分析  

ANALYSIS OF SIGNAL REBUILDING PERFORMANCE IN A DIGITAL RF MEMORY

作　　者：张俊[1] 费元春[1] 

机构地区：[1]北京理工大学电子工程系,北京100081

出　　处：《兵工学报》2001年第3期320-322,共3页Acta Armamentarii

摘　　要：从功率谱角度分析了数字射频存贮器 (DRFM)信号重构的性能 ,给出了分析方法和典型雷达信号的分析结果。通过计算仿真 ,得出了零阶保持信号归一化能量随中心频率变化情况。还给出减小零阶保持产生信号失真方法 ,并给出补偿滤波器的传递函数。From the point of view of power spectrum, the paper analyses the signal rebuilding performance of a digital RF memory (DRFM), and presents the method of analysis and the results of typical radar signals. The paper also presents a method of reducing signal distortion with the appropriate compensating filter, and plots the variation of normalized energy of zero-order hold signal versus the center frequency of down-conversion through computer simulation.

关 键 词：数字射频存贮器 信号重构 数字仿真转换器 功率谱密度 电子战 DRFM 电子干扰 

分 类 号：TN97[电子电信—信号与信息处理]