2018 52nd Asilomar Conference on Signals, Systems, and Computers 2018
DOI: 10.1109/acssc.2018.8645289
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Additional DoF in Cooperative Radar-Communications Systems

Abstract: A novel cooperative radar-communications system is proposed in this paper, where the communications base station acts as a bistatic radar receiver. Thanks to the cooperation between the two systems, the radar can benefit from an additional target channel. It is shown, using both analytical results and simulations, that the radar can improve its estimation performance in the proposed scenario. Radar waveform optimization based on Cramér-Rao Bound minimization is also presented in this paper. Using the obtained … Show more

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Cited by 3 publications
(8 citation statements)
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“…Thus, the OFDM‐type multicarrier waveform can be chosen for both radar and communications systems in a cooperative scenario. It is assumed that CBS is able to receive and process radar transmissions, which plays the role of a bistatic radar receiver [10]. The primary objective of the radar system is to enhance its LPI performance by optimising OFDM radar waveform while maintaining a predetermined target time delay estimation accuracy.…”
Section: System and Signal Modelsmentioning
confidence: 99%
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“…Thus, the OFDM‐type multicarrier waveform can be chosen for both radar and communications systems in a cooperative scenario. It is assumed that CBS is able to receive and process radar transmissions, which plays the role of a bistatic radar receiver [10]. The primary objective of the radar system is to enhance its LPI performance by optimising OFDM radar waveform while maintaining a predetermined target time delay estimation accuracy.…”
Section: System and Signal Modelsmentioning
confidence: 99%
“…The reconstructed radar target return can be removed from the signal at the CBS. In such a case, the communication signal is obtained, which is free from radar interference [9, 10]. Subsequently, the reconstructed radar signal at the CBS is given byright leftthickmathspace.5embold-italicrREC=bold-italicrbis+v=SboldΛbisbold-italicHbis+v, where bold-italicS denotes a Nc×Nc diagonal matrix containing the vector bold-italics of frequency domain emitted radar symbols, Λbis denotes a Nc×Nc diagonal matrix containing the phase shifts of each subcarrier owing to the target delay with elements false[Λbisfalse]l,l=expfalse(normalj2πlnormalΔfτtfalse), normalΔf denotes the subcarrier spacing, τt denotes the round‐trip delay from the radar to the target, Hbis denotes the Nc×1 bistatic channel frequency response vector, and bold-italicv denotes the Nc×1 residual error vector associated with the reconstruction process.…”
Section: System and Signal Modelsmentioning
confidence: 99%
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