Clutter and Range Ambiguity Suppression Using Diverse Pulse Train in Pulse Doppler System

被引:5
作者
Xu, Jiacen [1 ,2 ]
Ren, Lixiang [1 ,2 ]
Fan, Huayu [3 ]
Mao, Erke [1 ,2 ]
Liu, Quanhua [1 ,2 ]
机构
[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Minist Educ, Key Lab Elect & Informat Technol Satellite Nav, Beijing 100081, Peoples R China
[3] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
PD process; optimal filter; clutter suppression; ambiguity suppression; inverse filter; FILTERS; DESIGN; CODES; RADAR;
D O I
10.3390/s18072326
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Pulse Doppler (PD) systems are widely used for moving target detection, especially in scenarios with clutter. Range ambiguity, which arises from fixed parameters in waveforms, is an inherent drawback in conventional systems. By using a diverse pulse train such as a train of coherent diverse phase coded pulses, these ambiguous peaks can be suppressed effectively but at the cost of sidelobe dispersions. In this work, a novel efficient PD process is proposed to suppress range ambiguity and detect moving targets under strong clutter. Poly-phase coded pulses are employed along with optimal receiving filters, by which the dispersed sidelobes are mitigated to a great extent. Moreover, a novel clutter suppression procedure is included in the PD process, by which strong clutter can be greatly suppressed. Well-designed receiving and inverse filters are employed. Simulation examples are presented to verify the theories. Compared with conventional methods, much better detection results are obtained for both near and remote targets, especially in scenarios with strong clutter.
引用
收藏
页数:15
相关论文
共 20 条
  • [1] OPTIMUM MISMATCHED FILTERS FOR SIDELOBE SUPPRESSION
    ACKROYD, MH
    GHANI, F
    [J]. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 1973, AES9 (02) : 214 - 218
  • [2] Alabaster C., 2012, Pulse Doppler Radar
  • [3] Blunt Shannon D., 2010, 2010 5th International Waveform Diversity and Design Conference (WDD 2010), P195, DOI 10.1109/WDD.2010.5592502
  • [4] Chung WK, 2000, INT CONF ACOUST SPEE, P3037, DOI 10.1109/ICASSP.2000.861175
  • [5] Cook MR, 2011, IEEE RAD CONF, P812
  • [6] POLYPHASE CODES AND OPTIMAL FILTERS FOR MULTIPLE USER RANGING
    GRIEP, KR
    RITCEY, JA
    BURLINGAME, JJ
    [J]. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 1995, 31 (02) : 752 - 767
  • [7] Higgins T, 2011, IEEE RAD CONF, P895
  • [8] Optimal 3D deformation measuring in inclined geosynchronous orbit SAR differential interferometry
    Hu, Cheng
    Li, Yuanhao
    Dong, Xichao
    Wang, Rui
    Cui, Chang
    [J]. SCIENCE CHINA-INFORMATION SCIENCES, 2017, 60 (06)
  • [9] Mismatch Filter Design via Convex Optimization
    Kajenski, Peter J.
    [J]. IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS, 2016, 52 (04) : 1587 - 1591
  • [10] New techniques for radar coherent range ambiguity resolution
    Lin, F
    Steiner, M
    [J]. PROCEEDINGS OF THE 2001 IEEE RADAR CONFERENCE, 2001, : 99 - 104