Time Modulated Array for dual function radar and communication

Euziere, Jerome; Guinvarc'H, Régis; Hinostroza, Israel; Uguen, Bernard; Gillard, Raphaël

doi:10.1109/aps.2015.7304790

Cited by 13 publications

(9 citation statements)

References 7 publications

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“…Other specific cases were also investigated like a dual-channel AM receiver [61], the transmission of linearly frequency modulated (LFM) signals [62], or the feasibility of implementing a dual function of radar and communication [63,64]. …”

Section: State Of the Artmentioning

confidence: 99%

Time Modulated Arrays: From their Origin to Their Utilization in Wireless Communication Systems

Maneiro-Catoira

Bregáins

García-Naya

et al. 2017

Sensors

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Time-modulated arrays (TMAs) are electromagnetic systems whose radiated power pattern is controlled by the application of variable-width periodical pulses to the individual elements. The nonlinear nature of the array operation causes the appearance of radiation patterns at the harmonic frequencies of such periodic pulses. The technique can be used for improving the side-lobe level (SLL) topology of the radiation pattern at the central frequency and/or to profitably exploit the harmonic patterns in order to supply smart antenna capabilities. Among the latter features, the TMA harmonic beamforming takes on special importance due to its attractive trade-off performance-hardware complexity. From this perspective, TMAs are sensors capable of transforming the spatial diversity of a communication channel into frequency diversity, thus improving the performance of a wireless communication. In addition to a walk through the origins of the concept, and a brief analysis of the mathematical fundamentals, this paper organizes the prolific state of the art of TMAs in two major thematic blocks: (1) TMA design from an antenna perspective; and (2) TMA design from a signal processing perspective.

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Section: State Of the Artmentioning

confidence: 99%

Time Modulated Arrays: From their Origin to Their Utilization in Wireless Communication Systems

Maneiro-Catoira

Bregáins

García-Naya

et al. 2017

Sensors

View full text Add to dashboard Cite

show abstract

“…Email addresses: marik@ku.edu.tr (Muharrem Arik), akan@ku.edu.tr, oba21@cam.ac.uk (Ozgur B. Akan) URL: https://nwcl.ku.edu.tr/marik.html (Muharrem Arik), https://ioe.eng.cam.ac.uk/directory/akan (Ozgur B. Akan) Firstly proposed DFRC system is introduced for phased array radars with AM [4,5]. To provide variations in the sidelobe levels (SLLs) towards the communication direction, each phase of the transmit array of the phased array system is manipulated from pulse to pulse basis.…”

Section: Introductionmentioning

confidence: 99%

Realizing joint radar-communications in coherent MIMO radars

Arik

Akan

2019

Physical Communication

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The increasing interest on spectrum resources causes various efforts on developing smart and compact solutions as joint radarcommunication (JRC) systems. A JRC system can offer cost-effective solution with concurrent operation, as target sensing via radar processing and establishing communication links. JRC capability has been proposed over the years for different types of MIMO radars. However, a JRC capable monostatic coherent MIMO radar system is yet to be developed. These radars offer several advantages as fully coherent signal processing and coherent transmit beamforming which provides beampatterns to minimize probability of intercept. In this paper, two new waveform generation techniques suitable for JRC operation without disturbing transmit beamforming requirements and waveform orthogonality condition in space and time domain are proposed for monostatic coherent MIMO radars. Then, new communication methods are introduced for phase coded monostatic coherent MIMO radars. First method uses chirp-wise information encoding inside the radar pulse as intra-pulse communications. Second rotates the phase of a specific waveform on radiated symbols to a specific direction and the last method applies a small amount of progressive phase shift to the radar waveforms emitted from the antennas to create relative phase modulation between selected radar waveforms. Then, the performance of the proposed communication techniques are investigated in terms of bit error rate (BER) and generated waveforms are examined according to the orthogonality and transmit beamforming requirements.

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“…In this work, we concentrate on JRC system employing monostatic broadcast channel topology. Various joint waveform design techniques for JRC system employing monostatic broadcast channel topology have been discussed in existing literatures [16–24]. Amplitude modulation (AM)‐based dual‐function radar‐communications (DFRCs) systems are proposed in [16–19], where multiple orthogonal waveforms are used to embed the information to be transmitted, and the power levels of the radar sidelobes toward the communication directions are used to embed communication symbols.…”

Section: Introductionmentioning

confidence: 99%

“…Various joint waveform design techniques for JRC system employing monostatic broadcast channel topology have been discussed in existing literatures [16–24]. Amplitude modulation (AM)‐based dual‐function radar‐communications (DFRCs) systems are proposed in [16–19], where multiple orthogonal waveforms are used to embed the information to be transmitted, and the power levels of the radar sidelobes toward the communication directions are used to embed communication symbols. However, there are two limitations for the AM‐based joint system: (i) the communication receivers must be outside the radar main lobe, which are not guaranteed in practise; (ii) the data transmission rate of the proposed system in [16, 17] is very low.…”

Section: Introductionmentioning

confidence: 99%

“…Amplitude modulation (AM)‐based dual‐function radar‐communications (DFRCs) systems are proposed in [16–19], where multiple orthogonal waveforms are used to embed the information to be transmitted, and the power levels of the radar sidelobes toward the communication directions are used to embed communication symbols. However, there are two limitations for the AM‐based joint system: (i) the communication receivers must be outside the radar main lobe, which are not guaranteed in practise; (ii) the data transmission rate of the proposed system in [16, 17] is very low. To overcome these two problems, phase modulation and phase‐shift‐keying (PSK)‐based DFRC system is proposed in [20–22], where communication symbols are embedded in the phase difference between K orthogonal transmit waveform pairs.…”

Section: Introductionmentioning

confidence: 99%

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