Phased-MIMO radar waveform design with space-Time codes to improve probability of detection

Document Type : Original Article

Authors

1 PhD student, Malik Ashtar University of Technology, Tehran, Iran

2 Professor, Malik Ashtar University of Technology, Tehran, Iran

3 Assistant Professor, Malik Ashtar University of Technology, Tehran, Iran

Abstract

In this paper, the transmitted signal of multi-antenna radars with the desired covariance matrix is designed to be implemented using a fully correlated base signal (similar to phased-array radar) and using space-time codes with much lower complexity and cost. Using the proposed model, the transmitted signal will depend on the contents of the space-time codes as well as the transmitted base signal. By selecting a completely correlated and identical base signal for all transmitted antennas, the transmitted signal covariance matrix will depend only on the contents of the space-time codes. Therefore, by designing the space-time code, the desired covariance matrix is achieved. The result of this method is the achievement of any desired covariance matrix in the transmitter (and consequently the optimal performance, such as the desired beam pattern or high probability in target detection) using the very simple structure of phased-array radar as well as space-time codes. This method does not require several types of signal generators with different specifications (waveform variation). The receiver filter is also designed in accordance with the existing conditions in such a way that the best performance of the target detection probability be achieved.

Keywords

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References

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Radar
Volume 9, Issue 2 - Serial Number 26
November 2022
Pages 33-39

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History

  • Receive Date: 08 May 2021
  • Revise Date: 07 October 2022
  • Accept Date: 16 October 2022
  • Publish Date: 22 November 2022

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