摘要
建立了一个典型的PD雷达仿真系统,仿真系统共包含目标模拟,雷达接收机系统模拟,结果显示三个方面的内容。首先依据雷达接收机的硬件组成及信号处理流程,依次对发射信号波形、天线模型、同步检波及A/D变换、多普勒滤波及恒虚警(CFAR)检测建立仿真模型;然后对运动目标建立模型,分成目标的雷达散射截面积与运动轨迹两部分进行介绍;最后将所有的分离的模块根据雷达动目标探测的工作流程连成一个完整的雷达仿真系统,对运动的多个点目标进行探测仿真试验,并给出仿真试验的结果。证明了所建立的雷达仿真系统的有效性。
The article establishes a typical radar simulation system which includes the target model, receiving model and display model. According to its actual composition and the signal processing, a receiving system is discussed at first. The content includes the transmitted waveform, antenna, synchronization demodulation, A/D converter, Doppler filter and constant false alarm rate （CFAR） processor. Secondly, the article erects a moving target model, which is separated into radar cross section （RCS） and moving track. Finally,all separate modules are integrated to simulate the moving target detection. The experiment result proves the validity of the radar simulation system.
出处
《计算机仿真》
CSCD
2007年第5期298-301,共4页
Computer Simulation
关键词
雷达系统仿真
同步检波
变换器
恒虚警检测
目标探测
Radar system simulation
Synchronization demodulation
Converter
Constant false alarm rate （CFAR） processor
Target detection
