一种轻巧型接收数字波束雷达系统的实现
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摘要
针对数字波束相控阵雷达多通道问题,提出利用多路复用技术实现全数字阵接收多波束相控阵雷达的一种解决方案。天线阵列直接采用高频二相调制,将接收多通道直接模拟合成一路传输处理,基带提取各个天线单元回波数据信号、相位幅度加权,基带实现任意接收数字多波束。该技术突破单通道数字波束相控阵雷达接收技术,使天线体积大幅度减小,雷达系统轻巧,低成本;灵活软件配置阵列,降低调试、测试、工艺、加工复杂难度,有利于雷达综合性能提升。
For multi-channel problem of digital beam phased-array radar, multiplexing technology is proposed to achieve full digital array receiving multi-beam phased array radar. The antenna array is modulated by HF dual phase directly, the receiving multi-channel is simulated and synthesized into one channel for transmission processing. The base-band extracts echo signal data from each antenna unit and performs phase amplitude weighting, so as to achieve receiving digital multi-beam. This technology breaks though the receiving technology of single-channel digital beam phased array radar, which makes the volume of antenna greatly reduced, the radar system lightweight, low cost with flexible software configuration array, and improves the performance of radar, as well as reduces the complex level of modulation, test, technique and processing. It helps to improve the comprehensive performance of radar.
For multi-channel problem of digital beam phased-array radar, multiplexing technology is proposed to achieve full digital array receiving multi-beam phased array radar. The antenna array is modulated by HF dual phase directly, the receiving multi-channel is simulated and synthesized into one channel for transmission processing. The base-band extracts echo signal data from each antenna unit and performs phase amplitude weighting, so as to achieve receiving digital multi-beam. This technology breaks though the receiving technology of single-channel digital beam phased array radar, which makes the volume of antenna greatly reduced, the radar system lightweight, low cost with flexible software configuration array, and improves the performance of radar, as well as reduces the complex level of modulation, test, technique and processing. It helps to improve the comprehensive performance of radar.
引文
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[8]李杰然,李亮.天线隔离度及其测试方法分析[J].舰船电子对抗,2010,33(5):51-53.(LI Jieran,LI Liang.Analysis of antenna isolation and its test methods[J].Shipboard Electronic Countermeasure,2010,33(5):51-53.)
[9]CLIVE Alabaster.脉冲多普勒雷达-原理、技术与应用[M].张伟,刘洪亮,译.北京:电子工业出版社,2016.(CLIVEAlabaster.Pulse Doppler radar:technology,applications[M].Translated by ZHANG W,LIU H L.Beijing:Publishing House of Electronics Industry,2016.)
[2]田日才.扩频通信[M].北京:清华大学出版社,2007.(TIAN Ricai.Spread spectrum communications[M].Beijing:Publishing House of Tsinghua University,2007.)
[3]暴宇,李新民.扩频通信技术及应用[M].西安:西安电子科技大学出版社,2011.(BAO Yu,LI Xinming.Spread spectrum communications and application[M].Xi’an,China:Publishing house of Xidian University,2011.)
[4]MERRILL I Skolnik.雷达系统导论[M].3版.左群声,徐国良,马林,等,译.北京:电子工业出版社,2010.(MERRILL ISkolnik.Introduction to radar systems[M].3rd ed.Translated by ZUO Qunsheng,XU Guoliang,MA Lin,et al.Beijing:Publishing House of Electronics Industry,2010.)
[5]刘洋涛,李晓明,曹书华.一种子阵级DAR同时多波束拟合测角方法[J].雷达科学与技术,2017,15(2):215-219.(LIUYangtao,LI Xiaoming,CAO Shuhuan.An approach for simultaneous multi-beam fitting angle measurement in Digital Array Radar at subarray level[J].Radar Science and Technology,2017,15(2):215-219.)
[6]BERGAMO M A.Spread Spectrum Digital Beam Forming(SSDBF)radar[C]//2010 IEEE International Symposium on Phased Array Systems and Technology.[S.l.]:IEEE,2010:665-672.
[7]曹凯,陆佩忠,邹艳,等.一种基于多通道欠采样宽带频谱感知设计[J].太赫兹科学与电子信息学报,2017,15(6):940-945.(CAO Kai,LU Peizhong,ZOU Yan,et al.Design based on multi-channel sub-sampling for wideband spectrum sensing[J].Journal of Terahertz Science and Electronic Information Technology,2017,15(6):940-945.)
[8]李杰然,李亮.天线隔离度及其测试方法分析[J].舰船电子对抗,2010,33(5):51-53.(LI Jieran,LI Liang.Analysis of antenna isolation and its test methods[J].Shipboard Electronic Countermeasure,2010,33(5):51-53.)
[9]CLIVE Alabaster.脉冲多普勒雷达-原理、技术与应用[M].张伟,刘洪亮,译.北京:电子工业出版社,2016.(CLIVEAlabaster.Pulse Doppler radar:technology,applications[M].Translated by ZHANG W,LIU H L.Beijing:Publishing House of Electronics Industry,2016.)