Dual function radar communication Time-modulated array

Euziere, Jerome; Guinvarc'H, Régis; Lesturgie, Marc; Uguen, Bernard; Gillard, Raphaël

doi:10.1109/radar.2014.7060416

Cited by 103 publications

(93 citation statements)

References 4 publications

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“…The essence of the recent sidelobe AM based technique is to embed communication symbols into the radar emission via modulating the SLL towards the intended communication direction [29]. The primary radar operation requirements are satisfied by keeping the radar mainlobe unchanged during the entire coherent processing interval (CPI).…”

Section: Sidelobe Am Based Information Embeddingmentioning

confidence: 99%

“…Time-modulated array can be used to optimize the average array factor within the entire CPI, i.e., within the radar integration time as suggested in [29]. This method divides the radar integration time into P time intervals.…”

Section: Sidelobe Modulation Using Time-modulatedmentioning

confidence: 99%

“…Two methods are reported in [29] for solving the problem of designing the weights. The first method uses a sparse time modulated array.…”

Section: Sidelobe Modulation Using Time-modulatedmentioning

confidence: 99%

“…The emerging concept of dual-function radar-communications (DFRC) has been recently proposed as an effective mean to ease competition over bandwidth. Signaling strategies for DFRC include the sidelobe amplitude-modulation technique [29], the sidelobe amplitude-shift keying (ASK) based technique [30], and the phase-shift keying (PSK) based technique [31]. These techniques enforce additional constraints to the beampattern synthesis problem to enable the embedding of communication symbols into the radar emission.…”

Section: Introductionmentioning

confidence: 99%

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Computationally efficient beampattern synthesis for dual-function radar-communications

2016

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The essence of amplitude-modulation based dual-function radar-communications is to modulate the sidelobe of the transmit beampattern while keeping the main beam, where the radar function takes place, unchanged during the entire processing interval. The number of distinct sidelobe levels (SLL) required for information embedding grows exponentially with the number of bits being embedded. We propose a simple and computationally cheap method for transmit beampattern synthesis which requires designing and storing only two beamforming weight vectors. The proposed method first designs a principal transmit beamforming weight vector based on the requirements dictated by the radar function of the DFRC system. Then, a second weight vectors is obtained by enforcing a deep null towards the intended communication directions. Additional SLLs can be realized by simply taking weighted linear combinations of the two available weight vectors. The effectiveness of the proposed method for beampattern synthesis is verified using simulations examples.

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Section: Sidelobe Am Based Information Embeddingmentioning

confidence: 99%

Section: Sidelobe Modulation Using Time-modulatedmentioning

confidence: 99%

“…Two methods are reported in [29] for solving the problem of designing the weights. The first method uses a sparse time modulated array.…”

Section: Sidelobe Modulation Using Time-modulatedmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Computationally efficient beampattern synthesis for dual-function radar-communications

2016

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“…The joint operation of radar and communications using dual-functionality platforms has been recently proposed as an effective tool to ease competition over bandwidth. Several signaling strategies for information embedding into the radar emission have been reported in the literature including the waveform diversity based scheme [11]- [14], the sidelobe amplitude-modulation based scheme [16], the amplitude-shift keying (ASK) based scheme [18], [19], and the phase-shift keying (PSK) based scheme [21], [23], [24]. Some of these schemes require the realization of multiple orthogonal waveforms.…”

Section: Introductionmentioning

confidence: 99%

Efficient sidelobe ASK based dual-function radar-communications

et al. 2016

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Recently, dual-function radar-communications (DFRC) has been proposed as means to mitigate the spectrum congestion problem. Existing amplitude-shift keying (ASK) methods for information embedding do not take full advantage of the highest permissable sidelobe level. In this paper, a new ASK-based signaling strategy for enhancing the signal-to-noise ratio (SNR) at the communication receiver is proposed. The proposed method employs one reference waveform and simultaneously transmits a number of orthogonal waveforms equals to the number of 1's in the binary sequence being embedded. 3 dB SNR gain is achieved using the proposed method as compared to existing sidelobe ASK methods. The effectiveness of the proposed information embedding strategy is verified using simulations examples.

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Secrecy Rate Maximization for Intelligent Reflective Surface‐Assisted MIMO Communication Radar

Fang,

Chen,

Lambotharan

et al. 2024

Signal Processing for Joint Radar Communications

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Dual function radar communication Time-modulated array

Abstract: This paper introduces the use of Time-modulated array methods to realize a dual function array. It is able to do a radar function in the mainlobe, while realizing a communication in the side lobe.

Cited by 103 publications

References 4 publications

Computationally efficient beampattern synthesis for dual-function radar-communications

Computationally efficient beampattern synthesis for dual-function radar-communications

Efficient sidelobe ASK based dual-function radar-communications

Secrecy Rate Maximization for Intelligent Reflective Surface‐Assisted MIMO Communication Radar

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