%A Xi Jianjun, Zeng Zhaofa, Huang Ling, Cui Dandan, Wang Zhejiang %T Characteristics of the Signal Polarization Field in Array Type Ground Penetrating Radar %0 Journal Article %D 2017 %J Journal of Jilin University(Earth Science Edition) %R 10.13278/j.cnki.jjuese.201702307 %P 633-644 %V 47 %N 2 %U {http://xuebao.jlu.edu.cn/dxb/CN/abstract/article_10647.shtml} %8 2017-03-26 %X With the trend of the detection method using array observation, the GPR(ground penetrating radar) system takes the response characteristic analysis for the isomorphic multisource concurrent underground target as the basis and precondition for the system development and data processing. The multisource concurrent signal and target echo signal of the array antenna with complicated polarization characteristics, contain more response message about the target characteristics. Aiming at the plane wave like MIMO(multiple-input multiple-output) GPR system, this paper analyzes the response characteristics of the target in polarization plane wave illumination and the morphological characteristics of the model underground target through its multi-polarization signal. The surface projection distribution of the target is acquired through the integration along time axis of the data received by the array antenna, and the targets of the transmit-receive array antenna in 1-D and 2-D distribution are detected and analyzed by the time domain finite-difference forward modeling method. The research results that multi-polarization integrated characteristic analysis can improve effectively the consistency of the target detection, promote the signal to noise ratio (SNR) of the target response signal, abate the influence from the antenna pattern and target scattering cross-section blink upon the data section, and decrease the difficulty in data processing and interpretation.