摘要
地物杂波信号源能够检测雷达在高大地物环境下的强杂波抑制能力,系统由FPGA程序和主控计算机程序组成,在主控计算机内,LabVIEW调用动态链接库生成复高斯谱白噪声数据,结合高大地物杂波的特征,转换为高大地物杂波数据,经DMA的FIFO传输至PXIe-5641R板卡;然后由板卡的FPGA将数据存在memory中,当主脉冲到来后将杂波数据送至上变频器,输出60MHz中频杂波信号;最后测量了中频杂波信号波形,通过与雷达A显实物波形相比较,符合高大地物的起伏特征,波形达到了预期的效果。
Gound clutter signal source can be used to detect the radar＇ s capable of suppression of the strong clutter under the environment of tall surface features, the system consists of the FPGA program and the Host computer program, LabVIEW calls dynamic link library to generate complex Gaussian spectrum of white noise data, combined with the characteristics of the tall ground clutter converted to tall ground clutter data transfer by the DMA FIFO to PXIe--5641R board then the board FPGA data in memory after the arrival of the main pulse miscellaneous wave data is sent to the up--converter, the output IF signal. The last measurement of the signal waveform, compared with the radar A significant physical waveform to achieve the desired results.
出处
《计算机测量与控制》
北大核心
2013年第6期1621-1624,共4页
Computer Measurement &Control
基金
武器装备预研基金项目(9140C87020211JB34)
