CP-based MIMO OFDM radar IRCI free range reconstruction using real orthogonal designs  

作　　者：Tianxian ZHANG Xiang-Gen XIA Lingjiang KONG 

机构地区：[1]The School of Electronic Engineering, University of Electronic Science and Technology of China [2]The Department of Electrical and Computer Engineering, University of Delaware

出　　处：《Science China(Information Sciences)》2017年第2期36-44,共9页中国科学（信息科学）（英文版）

基　　金：supported by National Natural Science Foundation of China (Grant Nos. 61501083, 61178068);Fundamental Research Funds of Central Universities (Grants No. ZYGX2015KYQD056);Program for New Century Excellent Talents in University (Grant No. A1098524023901001063)

摘　　要：In this paper, we propose a range reconstruction method for a frequency-band shared multipleinput multiple-output（MIMO） orthogonal frequency-division multiplexing（OFDM） radar with sufficient cyclic prefix（CP） by using real orthogonal designs. Compared with the application of complex orthogonal designs in our previous work, the application of real orthogonal designs can significantly reduce the number of the all-zero-valued pulses in a coherent processing interval（CPI） for each transmitter and increase the efficiency of radar transmitters. Meanwhile, it still maintains the advantages of full spatial diversity without inter-range-cell interference（IRCI）. We also apply the rate-1 real orthogonal designs for different numbers of transmitters and pulses for range reconstruction without any idleness of radar transmitters. Simulation results are presented to illustrate the performances of the OFDM pulse design and the CP-based MIMO OFDM radar using real orthogonal designs.In this paper, we propose a range reconstruction method for a frequency-band shared multipleinput multiple-output（MIMO） orthogonal frequency-division multiplexing（OFDM） radar with sufficient cyclic prefix（CP） by using real orthogonal designs. Compared with the application of complex orthogonal designs in our previous work, the application of real orthogonal designs can significantly reduce the number of the all-zero-valued pulses in a coherent processing interval（CPI） for each transmitter and increase the efficiency of radar transmitters. Meanwhile, it still maintains the advantages of full spatial diversity without inter-range-cell interference（IRCI）. We also apply the rate-1 real orthogonal designs for different numbers of transmitters and pulses for range reconstruction without any idleness of radar transmitters. Simulation results are presented to illustrate the performances of the OFDM pulse design and the CP-based MIMO OFDM radar using real orthogonal designs.

关 键 词：cyclic prefix （CP） inter-range-cell interference （IRCI） multiple-input multiple-output （MIMO）radar real orthogonal designs orthogonal frequency division multiplexing （OFDM） pulse 

分 类 号：TN958[电子电信—信号与信息处理]