基于梳状谱发生器的毫米波相参脉压模拟器  

A New Coherent Pulse Compressed MM-Wave RadarA Radar RF Echo Generator Based on Comb Spectrum GeneratorRF Generator

作　　者：翟龙军[1] 曲洪东[1,2] 王晓伟[3] 姜志森[1] 

机构地区：[1]海军航空工程学院电子信息工程系 [2]陆军航空兵学院机载系 [3]92840部队

出　　处：《海军航空工程学院学报》2014年第2期131-135,162,共6页Journal of Naval Aeronautical and Astronautical University

摘　　要：研制了一种基于梳状谱发生器的全相参脉冲压缩毫米波雷达目标射频回波模拟器。通过与被测雷达共用基准频率参考信号,结合梳状谱发生器及DDS,保证了输出信号和雷达发射信号的相参性和快速频率跳变,实现较好的相位噪声性能和杂散抑制。该系统输出为Ka波段,带宽2 GHz,步进100 kHz,相位噪声小于-80 dBc@1kHz,跳频时间小于2μs。A new coherent pulse compressed ram-wave radar RF reho generator based on comb spectrum generator was developed. Using the same frequency reference signal of mm-wave radar to be tested, combined with comb spectrum generator and DDS, the coherency of the output signal was ensured, and fast frequency switching performance was achieved with low noise and spurious level. The developed echo generator outputs in Ka band, with output bandwidth of 2 GHz, frequency step of 100 kHz, phase noise level of-80dBc@1 kHz, low spurious level of-60 dBe and fast frequency switching time of 2 μs.

关 键 词：毫米波 频率合成 回波模拟 相参 梳状谱发生器 

分 类 号：TN955[电子电信—信号与信息处理]