Joint radar-communications design based on time modulated array

Shan, Chengzhao; Ma, Yongkui; Zhao, Honglin; Shi, Jun

doi:10.1016/j.dsp.2018.07.013

Cited by 20 publications

(13 citation statements)

References 20 publications

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“…By substituting ( 11) and ( 12) to ( 9) and ( 10), we can get the equivalent complex excitation as described in (13). Then we can get the equivalent complex excitation of 1 st harmonics, as follows…”

Section: A Modified Stmpamentioning

confidence: 99%

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Harmonic Beamforming Based on Modified Single-Sideband Time Modulated Phased Array and Its Enhanced Version

Miao

et al. 2021

IEEE Access

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Recently, harmonic beamforming in the time-modulated array (TMA) has attracted much attention. In this study, two kinds of beamforming systems of TMA based on the single-sideband timemodulated phased array (STMPA) and enhanced STMPA are presented, and the +1 st harmonic beamforming is performed. Based on the basic structure of STMPA and ESTMPA, we transform the design of the I/Q modulator, then the modified STMPA (MSTMPA) and modified ESTMPA (MESTMPA) are presented. The two channels in an I/Q modulator are each connected to an antenna with other structures keep constant. Hence, the number of antennas can be multiplied, and the system complexity can be reduced with an increase in the number of antennas especially for large-scale applications. In addition, the array aperture is enlarged with the same number of I/Q modulators, and the performance of the beam pattern is improved. However, without the single sideband structure, the (4k−13k) st and (8k−1) st harmonics in STMPA and ESTMPA cannot be eliminated; therefore, the bandpass filter is used at the output of the system; thus, the +1 st harmonic can be extracted. The derivations and analysis are given in detail, and STMPA and ESTMPA compared. Finally, the effectiveness of the proposed systems is verified by simulation results and the +1 st harmonic can be formed in desired directions.INDEX TERMS Time-modulated array, single-sideband time modulated phased array, switching sequences, radio frequency switches, harmonic beamforming.

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Section: A Modified Stmpamentioning

confidence: 99%

“…This indicates that harmonics are not harmful, since they can be properly controlled. The harmonic beamforming can be used in direction finding [10] [11], communications [12] [13], and radar [15].…”

Section: Introductionmentioning

confidence: 99%

Harmonic Beamforming Based on Modified Single-Sideband Time Modulated Phased Array and Its Enhanced Version

Miao

et al. 2021

IEEE Access

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“…Generally, the IRC system adopts a pulsed communication waveform to realize radar detection and wireless communication simultaneously. This waveform has a higher degree of integration than time division multiplexing [8] and space division multiplexing [9] integrated waveforms. Orthogonal frequency division multiplexing (OFDM) waveform has the advantages of high frequency utilization, anti-multipath effect, and high communication rate [10], and is widely applied to mobile communication systems and wireless local area networks (WLAN) [11].…”

Section: Introductionmentioning

confidence: 99%

Joint range and velocity estimation for orthogonal frequency division multiplexing‐based high‐speed integrated radar and communications system

Wang

Zhang

2022

IET Communications

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“…An integrated vehicular radar-communication system at 60 GHz is developed in [10] based on the autocorrelation property at zero-Doppler. A joint radar-communication system is designed based on time modulated array in [11] according to the civil and military requirements. These works on radar and communication integration (RCI) mainly focus on addressing spectrum sharing [3]- [4], waveform optimization [5]- [9] and system design [10]- [11].…”

Section: Introductionmentioning

confidence: 99%

“…A joint radar-communication system is designed based on time modulated array in [11] according to the civil and military requirements. These works on radar and communication integration (RCI) mainly focus on addressing spectrum sharing [3]- [4], waveform optimization [5]- [9] and system design [10]- [11]. The problem of resource allocation for the integration network is rarely considered.…”

Section: Introductionmentioning

confidence: 99%

Array resource allocation for radar and communication integration network

2020

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A radar and communication integration (RCI) system has great flexibility in allocating antenna resources to guarantee both radar and communication performance. This paper considers the array allocation problems for multiple target localization and multiple platforms communication in an RCI network. The objective of array allocation is to maximize the communication capacity for each channel and to minimize the localization error for each target. In this paper, we firstly build a localization and communication model for array allocation in an RCI network. Minorization maximization (MM) is then applied to create surrogate functions for multiple objective optimization problems. The projected gradient descent (PGD) method is further employed to solve two array allocation problems with and without a certain communication capacity constraint. Computer simulations are conducted to evaluate the performance of the proposed algorithms. The results show that the proposed algorithms have improved localization and communication performance after efficiently allocating the array

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Joint radar-communications design based on time modulated array

Cited by 20 publications

References 20 publications

Harmonic Beamforming Based on Modified Single-Sideband Time Modulated Phased Array and Its Enhanced Version

Harmonic Beamforming Based on Modified Single-Sideband Time Modulated Phased Array and Its Enhanced Version

Joint range and velocity estimation for orthogonal frequency division multiplexing‐based high‐speed integrated radar and communications system

Array resource allocation for radar and communication integration network

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