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SCIENCE CHINA Information Sciences, Volume 60, Issue 2: 022301(2017) https://doi.org/10.1007/s11432-015-0979-5

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

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  • ReceivedJan 30, 2016
  • AcceptedMay 23, 2016
  • PublishedNov 8, 2016

Abstract

In this paper, we propose a range reconstruction method for a frequency-band shared multiple-input 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.


Funded by

National Natural Science Foundation of China(61501083)

National Natural Science Foundation of China(61178068)

Fundamental Research Funds of Central Universities(Grants No. ZYGX2015KYQD056)

Program for New Century Excellent Talents in University(A1098524023901001063)


Acknowledgment

Acknowledgments

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


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