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

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• 作者：Tianxian Zhang ; Xiang-Gen Xia ; Lingjiang Kong
• 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
• 刊名：SCIENCE CHINA Information Sciences
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：60
• 期：2
• 全文大小：306 KB
• 刊物类别：Computer Science
• 刊物主题：Chinese Library of Science
  Information Systems and Communication Service
  
• 出版者：Science China Press, co-published with Springer
• ISSN：1869-1919
• 卷排序：60

文摘

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.