Hybrid Sparse Linear Array Synthesis Applied to Phased Antenna Arrays

Yepes, Leonardo F.; Covarrubias, David H.; Alonso, Miguel Ángel Verdugo; Ferrús, R.

doi:10.1109/lawp.2014.2301012

Cited by 29 publications

(10 citation statements)

References 10 publications

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“…The next step in designing a linear sparse array is splitting the configuration into two sides of eight elements each. CDS (7,3,1) is then applied to this split configuration as shown in Fig. 4a. a.…”

Section: Simulated and Measured Resultsmentioning

confidence: 99%

“…We choose a CDS (15,7,3) for each side of the array configuration (16 elements per side). The sparse array element configuration following a CDS -integer series places the element in the configuration of a set integer ( 0 1 2 4 5 8 10 …”

Section: New Combinatorial Cds Linier Sparse Array Design Approachmentioning

confidence: 99%

“…Generally, there are five sparse array antenna design methods that have been published; they can be classified as deterministic and generic algorithm methods [3][4][5][6][7][8][9], stochastic and probabilistic methods [10][11][12], general polynomial factorizations [13][14][15], combinatorial methods [16][17][18] and mutual coupling effects [19][20][21]. The combinatorial method, using cyclic difference sets (CDS), is a suitable design for a sparse array antenna with high efficiency, a simple process and minimal computation time compared with other sparse array methods.…”

Section: Introductionmentioning

confidence: 99%

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A Hybrid Technique Using Combinatorial Cyclic Difference Sets and Binomial Amplitude Tapering for Linear Sparse Array Antenna Design

Sandi

Zulkifli²,

Rahardjo³

2016

AEM

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Reducing system complexity and cost in synthesizing a sparse array antenna design is a challenging task for practical communication systems, such as radar systems and space communication. In this paper, a hybrid technique to synthesize a linear sparse array antenna design is described. This technique is developed using two methods. The first method is a combinatorial approach that applies cyclic difference sets (CDS) integers to significantly reduce the number of antenna elements. The approach and procedure used to apply the new CDS method to configure a linear sparse array, with significant reduction of the spatial antenna dimension, is described. The second method, applied to the array result of the first method, is amplitude tapering using a binomial array approach to reduce the sidelobes level (SLL). The simulation and measurement results of the sample sparse array design showed that the SLL was reduced in comparison to the sparse array design using only the combinatorial CDS method.

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Section: Simulated and Measured Resultsmentioning

confidence: 99%

Section: New Combinatorial Cds Linier Sparse Array Design Approachmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Hybrid Technique Using Combinatorial Cyclic Difference Sets and Binomial Amplitude Tapering for Linear Sparse Array Antenna Design

Sandi

Zulkifli²,

Rahardjo³

2016

AEM

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show abstract

“…However, only the switch-on duration time of array element was optimized, while the position of an array element was fixed. Yepes [16] proposed a new hybrid technique to synthesize different shaped beams (narrow beam, flat top beam, and square cosecant beam) for linear array.…”

Section: Introductionmentioning

confidence: 99%

Pattern Synthesis of Time-Modulated Sparse Array by an OPM-CVX Algorithm

Liang

Jiang

Liu

et al. 2020

Mathematical Problems in Engineering

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This paper addresses the constrained multiobjective optimization problem of time-modulated sparse arrays. The synthesis objective is to find an optimal element arrangement and associated excitation strategy of sparse arrays, which realize the balance of radiation power and sideband suppression performance with minimum number of elements, and suppress side lobe level simultaneously. A novel hybrid algorithm based on orthogonal perturbation method and convex optimization (OPM-CVX) for the synthesis of time-modulated sparse antenna array is presented in this paper. In order to satisfy the main lobe beamforming and side lobe suppression of sparse arrays, the proposed method optimizes element positions with minimum array numbers by orthogonal perturbation method and optimizes excitations of array element with dynamic range ratio constraint by convex optimization. Furthermore, a trapezoidal pulse time-modulated switching function is proposed to find the balance of radiation power and sideband suppression performance. The numerical results indicate that the proposed algorithm can be an effective approach for synthesis problems of time-modulated sparse arrays.

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“…The authors of [14] increase the DOFs with the minimum redundancy arrays [15] and constructing an augmented covariance matrix. Nonuniform and sparse array arrangements are also widely employed [16][17][18][19][20][21]. Solutions based on genetic algorithm [22,23], random spacing [24], linear programming [25], and compressive sensing [26][27][28] have been proposed for phased-array thinning.…”

Section: Introductionmentioning

confidence: 99%

Joint Phased-MIMO and Nested-Array Beamforming for Increased Degrees-of-Freedom

Zhu

Chen

Shao

2015

International Journal of Antennas and Propagation

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Phased-multiple-input multiple-output (phased-MIMO) enjoys the advantages of MIMO virtual array and phased-array directional gain, but it gets the directional gain at a cost of reduced degrees-of-freedom (DOFs). To compensate the DOF loss, this paper proposes a joint phased-array and nested-array beamforming based on the difference coarray processing and spatial smoothing. The essence is to use a nested-array in the receiver and then fully exploit the second order statistic of the received data. In doing so, the array system offers more DOFs which means more sources can be resolved. The direction-of-arrival (DOA) estimation performance of the proposed method is evaluated by examining the root-mean-square error. Simulation results show the proposed method has significant superiorities to the existing phased-MIMO.

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Hybrid Sparse Linear Array Synthesis Applied to Phased Antenna Arrays

Cited by 29 publications

References 10 publications

A Hybrid Technique Using Combinatorial Cyclic Difference Sets and Binomial Amplitude Tapering for Linear Sparse Array Antenna Design

A Hybrid Technique Using Combinatorial Cyclic Difference Sets and Binomial Amplitude Tapering for Linear Sparse Array Antenna Design

Pattern Synthesis of Time-Modulated Sparse Array by an OPM-CVX Algorithm

Joint Phased-MIMO and Nested-Array Beamforming for Increased Degrees-of-Freedom

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