Interpolated Airborne MIMO Antenna Array

Zhang, Chao; Pang, Keke; Ma, Lu

doi:10.1109/lawp.2014.2354453

Cited by 13 publications

(8 citation statements)

References 5 publications

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“…Furthermore, it was also reported in [33] that using multiple antennas at the Ground Station (GS) is unable to mitigate airframe shadowing. As a result, it is of practical importance to employ multiple airborne antennas, which also offers a beneficial power-efficiency improvement in a variety of airborne scenarios [34]- [36].…”

Section: Introductionmentioning

confidence: 99%

Adaptive Coherent/Non-Coherent Single/Multiple-Antenna Aided Channel Coded Ground-to-Air Aeronautical Communication

Zhang

Bai

et al. 2019

IEEE Trans. Commun.

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In this treatise, first of all, we conceive a generic Multiple-Symbol Differential Sphere Detection (MSDSD) solution for both single-and multiple-antenna based noncoherent schemes in both uncoded and coded scenarios, where the high-mobility aeronautical Ricean fading features are taken into account. The bespoke design is the first MSDSD solution in open literature that is applicable to the generic Differential Space-Time Modulation (DSTM) for transmission over Ricean fading. In the light of this development, the recently developed Differential Spatial Modulation (DSM) and its diversity counterpart of Differential Space-Time Block Coding using Index Shift Keying (DSTBC-ISK) are specifically recommended for aeronautical applications owing to their low-complexity single-RF and finite-cardinality features. Moreover, we further devise a noncoherent Decision-Feedback Differential Detection (DFDD) and a Channel State Information (CSI) estimation aided coherent detection, which also take into account the same Ricean features. Finally, the advantages of the proposed techniques in different scenarios lead us to propose for the aeronautical systems to adaptively (1) switch between coherent and non-coherent schemes, (2) switch between single-and multiple-antenna based schemes as well as (3) switch between high-diversity and high-throughput DSTM schemes.

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Section: Introductionmentioning

confidence: 99%

Adaptive Coherent/Non-Coherent Single/Multiple-Antenna Aided Channel Coded Ground-to-Air Aeronautical Communication

Zhang

Bai

et al. 2019

IEEE Trans. Commun.

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“…By interpolating to satisfy the Minimum Mean Square Error (MMSE) 19, 20 , the weighting coefficient w for the received vector can be expressed as …”

Section: Resultsmentioning

confidence: 99%

“…Although two receiving antennas are used here, the concept can be extended to an antenna array with more elements 19, 20 (see Fig. S5 in Supplementary Information).…”

Section: Resultsmentioning

confidence: 99%

“…According to the rotational Doppler Effect, if the VRA rotates with a certain rotational speed, a frequency shift in the interpolated signal occurs and the corresponding OAM mode can be detected and identified. A similar concept of interpolation using an antenna array was first introduced to eliminate the Doppler Effects in wireless digital TV broadcasting 19 and then extended to Air-to-Ground (A/G) MIMO communications 20 . Because of this, we built a novel interpolation scheme to realize the VRA.…”

Section: Introductionmentioning

confidence: 99%

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Detecting the Orbital Angular Momentum of Electro-Magnetic Waves Using Virtual Rotational Antenna

Zhang

2017

Sci Rep

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Orbital Angular Momentum (OAM) is a typical spatial mode of an Electro-Magnetic (EM) wave. Correctly detecting the OAM mode is fundamental and of foremost importance when applying the phenomenon to wireless transmission in free space. It is found that when rotating an OAM wave, a rotational Doppler shift that is proportional to the rotation speed and the OAM mode number can be observed. This property can be used for OAM detection, i.e., different OAM modes are identified by measuring the corresponding rotational Doppler frequency shifts. In previous work, this method was implemented by mechanically rotating the OAM wave, resulting in a small frequency shift. Since the high-speed mechanical rotation is hard to manufacture in a real system, it brings limitations to the bandwidth for each OAM wave. In this paper, we report on an OAM mode detection method based on digitally rotating a virtual antenna. The transmitter and receiver are physically fixed, but the Virtual Rotational Antenna (VRA) is obtained by interpolating the signals received from transverse-mounted receiving antennas. A large rotational Doppler shift occurs as a consequence of using digital processing, resulting in more capability for wideband wireless data transmission with the larger shifted frequency.

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“…The performance of DOA estimators mainly depends on the aperture of the array. In the modern electromagnetic environment, antenna arrays may be deployed on moving platforms (e.g., airplanes, satellites, ships) to enhance their maneuverability [1]. However, apertures of those arrays are generally restricted by the size of platform they attached to, which could lead to degradation on DOA estimation performance if not of a suitable size [2].…”

Section: Introductionmentioning

confidence: 99%

A Joint Space-Time Array for Communication Signals-Based on a Moving Platform and Performance Analysis

Yang

Wang

Yin

2018

Sensors

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A joint space-time array for communication signals is constructed in this paper to settle the contradiction between the performance of angle estimation and the array aperture. It introduces Doppler information caused by platform motion into the signal processing to obtain favorable performance with limited array aperture. We analyze the theoretical performance in the aspects of distinguishable source number, spatial resolution and Cramér-Rao bound (CRB), respectively. Both theoretical analysis and simulation results demonstrate that the proposed space-time array can give rise to a significant enhancement in achievable array performance.

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Interpolated Airborne MIMO Antenna Array

Cited by 13 publications

References 5 publications

Adaptive Coherent/Non-Coherent Single/Multiple-Antenna Aided Channel Coded Ground-to-Air Aeronautical Communication

Adaptive Coherent/Non-Coherent Single/Multiple-Antenna Aided Channel Coded Ground-to-Air Aeronautical Communication

Detecting the Orbital Angular Momentum of Electro-Magnetic Waves Using Virtual Rotational Antenna

A Joint Space-Time Array for Communication Signals-Based on a Moving Platform and Performance Analysis

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