TY - JOUR
T1 - Wideband distributed coherent aperture radar based on step frequency signal
AU - Yin, Pi Lei
AU - Yan, Lu
AU - Zhang, Zong Ao
AU - Yang, Xiao Peng
AU - Zeng, Tao
N1 - Publisher Copyright:
© 2016, Editorial Department of Transaction of Beijing Institute of Technology. All right reserved.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - The time synchronization is the key issue of wideband distributed coherent aperture radar. However, current time synchronization technology could not meet the requirement of high accuracy of time synchronization for wideband distributed coherent aperture radar. In this paper, a time synchronization method based on step frequency signal was proposed. Firstly, the impact of time synchronization error on coherent performance was investigated. And then, a time synchronization method by using step frequency signal to replace linear frequency modulated signal was proposed. According to theoretical analysis, the effect of time synchronization error on coherent performance was reduced in our proposed method, which reduced the requirement of time synchronization accuracy into a realizable level. At last, the effectiveness of proposed method was verified by simulations.
AB - The time synchronization is the key issue of wideband distributed coherent aperture radar. However, current time synchronization technology could not meet the requirement of high accuracy of time synchronization for wideband distributed coherent aperture radar. In this paper, a time synchronization method based on step frequency signal was proposed. Firstly, the impact of time synchronization error on coherent performance was investigated. And then, a time synchronization method by using step frequency signal to replace linear frequency modulated signal was proposed. According to theoretical analysis, the effect of time synchronization error on coherent performance was reduced in our proposed method, which reduced the requirement of time synchronization accuracy into a realizable level. At last, the effectiveness of proposed method was verified by simulations.
KW - Distributed coherent aperture radar
KW - Step frequency signal
KW - Time synchronization error
KW - Wideband
UR - https://www.scopus.com/pages/publications/84981252411
U2 - 10.15918/j.tbit1001-0645.2016.07.017
DO - 10.15918/j.tbit1001-0645.2016.07.017
M3 - Article
AN - SCOPUS:84981252411
SN - 1001-0645
VL - 36
SP - 749
EP - 754
JO - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
IS - 7
ER -