Robust Adaptive Beamformer Using Interpolation Technique for Conformal Antenna Array

Yang, Peng; Yang, Feng; Nie, Zaiping; Li, Biao; Tang, Xianfa

doi:10.2528/pierb10061504

Cited by 26 publications

(14 citation statements)

References 23 publications

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“…In this method, we calculate the optimal s and t using an interpolation technique [53,[58][59][60]. Let f 0 be the operation frequency.…”

Section: Design Approximationsmentioning

confidence: 99%

Theoretical Establishment and Evaluation of a Novel Optimal Pyramidal Horn Design Criterion

Baltzis¹

2010

PIER

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Abstract-This paper proposes a novel design criterion for optimal pyramidal horns. According to the criterion, the optimal aperture phase error parameters of a pyramidal horn are determined from the minimization of the horn's lateral surface area. We present two families of curves that illustrate the optimal aperture phase error parameters for frequency and directivity values in the area of practical interest. We also discuss two simple approximate design methods for the calculation of the optimal horn parameters. Comparisons with well-known design methods demonstrate the efficacy of our approach. The designed horns have also smaller aperture area and require less installation space than other optimal proposals in the published literature. Moreover, the proposed criterion produces, under certain conditions, the lightest horn for a given directivity; as a result its fabrication requires less material compared to other structures. The present approach is a useful design tool when the size and weight of a pyramidal horn are of concern.

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“…In this method, we calculate the optimal s and t using an interpolation technique [53,[58][59][60]. Let f 0 be the operation frequency.…”

Section: Design Approximationsmentioning

confidence: 99%

Theoretical Establishment and Evaluation of a Novel Optimal Pyramidal Horn Design Criterion

Baltzis¹

2010

PIER

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“…The size of the sectors depends on the array geometry and desired accuracy [17][18][19]. For example, suppose the signal components belong to a sector…”

Section: Interpolated Array Transformmentioning

confidence: 99%

A Three-Dimensional Imaging Algorithm for Tomography Sar Based on Improved Interpolated Array Transform1

Ren¹,

Qiao²,

Qin³

2011

PIER

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Abstract-The imaging quality of tomography SAR is limited by the low number of flight tracks and their non-uniform distribution. In this paper, a new 3-D imaging algorithm is proposed for tomography SAR based on the improved interpolated array transform. The key point of the proposed algorithm is the introduction of the projection technique into the interpolated array transform, which can reduce the energy of the interference signal and improve the imaging quality. Performance analysis under different scenarios is carried out via the simulations. And the results demonstrate that the sidelobe performance can be significantly improved by the proposed algorithm.

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“…Therefore, VAT technique is supposed to have a broad applications in the complex environment to reduce electromagnetic interference (EMI) [13], to improve the performance of antenna array in the handhold devices [14], to adopt information from the nearby environment in the body network communication [15], to improve the imaging quality of tomography SAR [16]. In recent years, the combination of virtual antenna and array signal processing theory has drawn great attention, and most researches focus on the Direction-of-Arrival (DOA) estimation aspect [17,18], and comparatively less in beam forming field [19].…”

Section: Introductionmentioning

confidence: 99%

On Adaptive Beamforming for Coherent Interference Suppression via Virtual Antenna Array

Li¹,

Li²,

Yu³

2012

PIER

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Abstract-In this paper, we propose Modified Interpolated Spatial Smoothing (MISS) algorithm that solves the problem when the inhibition gain generated by Interpolated Spatial Smoothing (ISS) algorithm is not sufficiently high in virtual antenna adaptive beam forming to suppress coherent interference.Using the subspace projection concept, this paper establishes an interference subspace spanned by the interference steering vectors of the virtual antenna array, and then the interference direction information can be imported into the transformation matrix by projecting the transformation matrix into the subspace, which will make the interference components in virtual smoothing covariance matrix enhanced as it is demonstrated by theoretical analysis. Employing the Minimum Variance Distortionless Response (MVDR) beam forming method, the interference inhibition gain and Signal to Interference and Noise Ratio (SINR) performance can be significantly improved.

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Robust Adaptive Beamformer Using Interpolation Technique for Conformal Antenna Array

Cited by 26 publications

References 23 publications

Theoretical Establishment and Evaluation of a Novel Optimal Pyramidal Horn Design Criterion

Theoretical Establishment and Evaluation of a Novel Optimal Pyramidal Horn Design Criterion

A Three-Dimensional Imaging Algorithm for Tomography Sar Based on Improved Interpolated Array Transform1

On Adaptive Beamforming for Coherent Interference Suppression via Virtual Antenna Array

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