Polyphase orthogonal sequences design for opportunistic array radar via HGA

Gong, Shufeng; Long, Weijun; Huang, Hao; Ben, De; Pan, Minghai

doi:10.1109/jsee.2013.00008

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…In recent years, electromagnetic environments have been more complicated due to the increased number and complexity of antennas, and they have been vital to many elds [1,2]. Shared aperture technology is one of the feasible approaches to achieve multifunction application of the array antenna [3,4]. is technology enables two or more antenna subarrays to occupy one aperture by space-division multiplexing, in which each subarray can perform di erent functions.…”

Section: Introductionmentioning

confidence: 99%

Shared Aperture Multibeam Forming of Time‐Modulated Linear Array

2019

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A novel technique is proposed in this paper for shared aperture multibeam forming in a complex time-modulated linear array. First, a uniform line array is interleaved randomly to form two sparse array subarrays. Subsequently, the theory of time modulation for linear arrays is applied in the constructed subarrays. In the meantime, the switch-on time sequences for each element of the two subarrays are optimized by an optimized differential evolution (DE) algorithm, i.e., the scaling factor of the sinusoidal iterative chaotic system and the adaptive crossover probability factor are used to enhance the diversity of the population. Lastly, the feasibility of the new technique is verified by the comparison between this technique and the basic multibeam algorithm in a shared aperture and the algorithm of iterative FFT. The results of simulations confirm that the proposed algorithm can form more desired beams, and it is superior to other similar approaches.

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Section: Introductionmentioning

confidence: 99%

Shared Aperture Multibeam Forming of Time‐Modulated Linear Array

2019

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“…A new radar concept, the opportunistic array radar (OAR) which is also called distributed phased array radar, has been proposed by some scholars in recent years [ Jenn and Loke , ; Long et al , ; Gong et al , ], based on digital array radar. OAR is a new radar system based on the stealth of the platform, which can improve the modern radar performance effectively.…”

Section: Introductionmentioning

confidence: 99%

“…The concept, principle, and characteristics of the opportunistic digital array radar are presented in Long et al []. Phase orthogonal code sets with low autocorrelation and cross‐correlation properties, which can be used in the OAR systems, are reported in Gong et al []. But the research of the OAR is still at the beginning, for example, there are very few studies on the radiation control of the OAR network.…”

Section: Introductionmentioning

confidence: 99%

Optimal coordination method of opportunistic array radars for multi‐target‐tracking‐based radio frequency stealth in clutter

Zhang

Salous

et al. 2015

Radio Science

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(2015) 'Optimal coordination method of opportunistic array radars for multi-target-tracking-based radio frequency stealth in clutter.', Radio science., 50 (11). 1187-1196 . Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Abstract Opportunistic array radar is a new radar system that can improve the modern radar performance effectively. In order to improve its radio frequency stealth ability, a novel coordination method of opportunistic array radars in the network for target tracking in clutter is presented. First, the database of radar cross section for targets is built, then the signal-to-noise ratio for netted radars is computed according to the radar cross section and range of target. Then the joint probabilistic data association algorithm of tracking is improved with consideration of emitted power of the opportunistic array radar, which has a main impact on detection probability for tracking in clutter. Finally, with the help of grey relational grade and covariance control, the opportunistic array radar with the minimum radiated power will be selected for better radio frequency stealth performance. Simulation results show that the proposed algorithm not only has excellent tracking accuracy in clutter but also saves much more radiated power comparing with other methods.

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“…A new radar concept, the opportunistic array radar which is also called distributed phased array radar, has been proposed by some scholars in recent years [1][2][3], based on digital array radar. Opportunistic array radar is a new generation radar system based on the stealth of the platform, which can improve the modern radar performance effectively.…”

Section: Introductionmentioning

confidence: 99%

“…The concept, principle, and characteristics of the opportunistic digital array radar are presented in [2]. Phase orthogonal code sets with low autocorrelation and crosscorrelation properties, which can be used in the opportunistic array radar systems, are reported in [3]. The research of the opportunistic array radar is still at the beginning; for example, there are very few studies on the design of emitted beamforming, which is supposed to be a multiobjective optimization problem.…”

Section: Introductionmentioning

confidence: 99%

An Opportunistic Array Beamforming Technique Based on Binary Multiobjective Wind Driven Optimization Method

Zhang

Salous

et al. 2015

International Journal of Antennas and Propagation

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We present a novel binary version of multiobjective wind driven optimization (WDO) for emitted beamforming of opportunistic array radar, which is assumed as a multiobjective optimization problem. Firstly, the emitted signal model and objective functions of optimization are presented. Then the algorithm proposes a new definition of the position vector of air parcel, and brings a good discretization interpretation of continuous WDO. For multiobjective optimization, the grey relational grade (GRG) is then used to measure the similarity between the best two solutions for these two objectives. The best pressure locations with the maximum GRG will be recorded as the best two candidate solutions to the problem, and a final optimization result will be selected according to the importance of the two objectives. Finally, the proposed improved WDO has been applied for the optimal design of beamforming of the opportunistic antenna array, which needs a trade-off between the 3 dB main beam width and sidelobe level. The simulation results show that the proposed method outperforms conventional particle swarm optimization (PSO) in the optimal beamforming by achieving more reduction in the sidelobe level and saving more runtime.

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Polyphase orthogonal sequences design for opportunistic array radar via HGA

Cited by 9 publications

References 9 publications

Shared Aperture Multibeam Forming of Time‐Modulated Linear Array

Shared Aperture Multibeam Forming of Time‐Modulated Linear Array

Optimal coordination method of opportunistic array radars for multi‐target‐tracking‐based radio frequency stealth in clutter

An Opportunistic Array Beamforming Technique Based on Binary Multiobjective Wind Driven Optimization Method

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