• Chinese Science Citation Database(CSCD)
  • Chinese Scientific and Technological Paper and Citation Database (CSTPCD)
  • China National Knowledge Infrastructure(CNKI)
  • Chinese Science Abstracts Database(CSAD)
  • JST China
  • SCOPUS

Latest Notice

Latest Notice

WeChat Official Account

WeChat Official Account

XU Zhiming, LU Yongge, LI Sheng, YAO Jingping. Frequency rate estimation based on contrast optimization criterion[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(5): 955-958.
Reference format: XU Zhiming, LU Yongge, LI Sheng, YAO Jingping. Frequency rate estimation based on contrast optimization criterion[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(5): 955-958.

Frequency rate estimation based on contrast optimization criterion

More Information
  • Available Online: December 30, 2020
  • Published Date: October 30, 2013
  • In synthetic aperture radar imaging and application,the frequency rate needs to be estimated.The usual algorithm based on image contrast optimization needs iteration,so the computation of the algorithm is big,the constringency of the algorithm is tardy and the algorithm is inefficient.For conquering the defect,a new autofocus algorithm based on image contrast optimization is showed in this paper.The algorithm is named parabola method.The algorithm estimates Doppler rate by using parabola in mathematics.Without iteration, the efficiency of the algorithm is greatly improved.The airborne synthetic aperture radar(SAR) real data image result and analysis validate the feasibility and efficiency of given method in this paper.
  • 武拥军,黄冶,吴先良.机载双站聚束合成孔径雷达的三维空间分辨率特性[J].电波科学学报,2011,26(6):12001206.WU Yongjun,HUANG Ye,WU Xianliang.Threedimensional spatial resolution of airborne bistatic spotlight SAR[J].Chinese Journal of Radio Science,2011,26(6):12001206.(in Chinese)
    邓云凯,王宇,杨贤林,等.基于对比度最优准则的自聚焦优化算法研究[J].电子学报,2006,34(9):17421744.DENG Yunkai,WANG Yu,YANG Xianlin,ZHANG Zhimin.The Research of autofocus optimization algorithm based on contrast optimization criterion[J].Chinese Journal of Electronics,2006,34(9):17421744.(in Chinese)
    BERIZZI F. CORSINI G. Autofocusing of inverse synthetic aperture radar images using contrast optimization[J].IEEE Trans AES,1996,32(3):11851191.
    刘月花,荆麟角.对比度最优自聚焦算法[J].电子与信息学报,2003,25(1):2430.LIU Yuehua,JING Linjiao.Contrast optimization autofocus algorithm[J].Journal of Electronics and Information Technology,2003,25(1):2430.(in Chinese)
    保铮,刑孟道,王彤.雷达成像技术[M].北京:电子工业出版社,2005.
    张澄波.综合孔径雷达:原理、系统分析与应用[M]. 北京:科学出版社,1989.
    杨俭,侯海平,曲长文,等.机载下视阵列合成孔径雷达成像的微多普勒效应[J].电波科学学报,2012,27(5):10491055.YANG Jian,HOU Haiping,QU Changwen,et al.Microdoppler effect for airborne downward looking array SAR imaging[J].Chinese Journal of Radio Science,2012,27(5):10491055.(in Chinese)[LL]
    JAKOWTZ C V. WAHL DE, EICHEL P H,et al.SpotlightMode Synthetic Aperture Radar:A Signal Processing Approach[M].Boston,Kluwer Academic Publishers,1996.
  • Related Articles

    [1]FU Yihui, ZHOU Peng, CHEN Siwei. SAR image radio frequency interference suppression method based on time-frequency location and edge notch[J]. CHINESE JOURNAL OF RADIO SCIENCE. DOI: 10.12265/j.cjors.2025016
    [2]YAO Yanxin. Simulation on low sampling rate high resolution compressed power spectrum estimation method[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2016, 31(6): 1172-1179. DOI: 10.13443/j.cjors.2016082001
    [3]GUO Fuyang, ZHANG Zijing, YANG Linsen. TDOA/FDOA estimation algorithm for linear frequency modulated signals[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2016, 31(1): 166-172. DOI: 10.13443/j.cjors.2015031501
    [4]CAI Yongjun, ZHANG Xiangkun, JIANG Jingshan. Echo modeling and signal analysis of frequency modulated continuous wave synthetic aperture radar[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2015, 30(6): 1157-1163. DOI: 10.13443/j.cjors.2014120902
    [5]CHEN Xiang, WANG Liandong, CHEN Yongguang, ZENG Yonghu, HAN Hui, DONG Jun. Improved method for estimating time domain response based on the magnitude frequency spectrum[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2015, 30(3): 476-482. DOI: 10.13443/j.cjors.2014052101
    [6]YAN Hao, DONG Chunxi, ZHAO Guoqing. Parameter estimation of LFM signal based on compressed sensing[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2015, 30(3): 449-456. DOI: 10.13443/j.cjors.2014070103
    [7]ZHU Wentao, SU Tao, YANG Tao, ZHENG Jibin, ZHU Kairan. Parameter estimation of linear frequency modulated continuous wave signal in low SNR[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(6): 1153-1159.
    [8]ZONG Zhulin, HU Jianhao, ZHU Lidong, ZHANG Shunsheng. Waveform design based on double frequency modulation slope for distributed space-borne radar system[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2013, 28(6): 1070-1076.
    [9]FENG Zhi-hong, LAI Tao, ZHAO Yong-jun. Parameter estimation of STLFMCW signals in low SNR[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2012, 27(3): 520-525.
    [10]HE Jin, ZHANG Qun, LUO Ying, ZHU Xiao-peng, DENG Dong-hu. Motion parameter estimation for frequency-stepped chirp signal ISAR target[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2012, 27(2): 246-254.

Catalog

    Article views (153) PDF downloads (7) Cited by()
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return