Detection and Correction of Element Failures Using a Cumulative Sum Scheme for Active Phased Arrays

Chen, Yen‐Sheng; Tsai, I-Lin

doi:10.1109/access.2018.2803791

Cited by 23 publications

(11 citation statements)

References 70 publications

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“…A typical phased array antenna structure is given in FIGURE 1, which is composed of element array, TR module array, beam control system, and power distribution/addition network [11], [42]. The phase and amplitude of each transceiving channel's signal can be configured and the radiation beam can be controlled.…”

Section: A Phased Array Antenna's Basic Structure and Self-repairmentioning

confidence: 99%

“…In the current research, when the fault is identified, the excitation and its control code [7] of remaining elements [8] or compensation sub-array [9] is recalculated. The corresponding TR modules are reconfigured to minimize the difference between the original pattern and the repaired pattern in presence of faults [10], [11]. Therefore, researchers have paid great attention to the excitation recalculation, and different calculating methods have been studied.…”

Section: Introductionmentioning

confidence: 99%

“…Iterative Fourier transform (IFT) [5], [30], [31] and quantized IFT (QIFT) [32] is another method for calculating the excitation of remaining elements. Besides the calculation methods based on intelligence optimization algorithm and IFT, there are other techniques based error minimization scheme, such as cumulative sum (CUSUM) [11], matrix pencil technique (MPT) [33]- [35], conjugate symmetry approach [36], minimum norm least-square [37]. After the excitation was calculated, the remaining TR modules would be reconfigured to obtain the repaired pattern which is similar to the original pattern.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Embryonics Based Phased Array Antenna Structure With Self-Repair Ability

et al. 2020

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Section: A Phased Array Antenna's Basic Structure and Self-repairmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Embryonics Based Phased Array Antenna Structure With Self-Repair Ability

et al. 2020

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“…In those methods, a large number of measurements are required, which decreases the total efficiency. Fast diagnosis methods dealing with digital phase shifter failures in phased arrays are proposed in [15]- [17]. Independent data are obtained by shifting antenna excitation phases [15].…”

Section: Introductionmentioning

confidence: 99%

“…Independent data are obtained by shifting antenna excitation phases [15]. The mutual coupling technique (MCT) is used to identify element phase failures by measuring adjacent elements [16], [17]. It is assumed that array elements are uniform and the mutual coupling among adjacent elements is the same.…”

Section: Introductionmentioning

confidence: 99%

A Diagnosing Method for Phased Antenna Array Element Excitation Amplitude and Phase Failures Using Random Binary Matrices

Xiong

Xiao

2020

IEEE Access

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A diagnosing method for phased antenna array element failures is proposed. The element excitation amplitudes and phases are reconstructed by a compressed sensing based approach, in which the radiated electric fields of the array are sampled by a single fixed receiving antenna. The diagnosing can be processed when the phased array is still in service. Particularly, it can be specialized for detecting faults only. Element excitation phases are designed to follow Bernoulli distribution, which is difficult to be realized in conventional geometric sampling methods. It is capable to provide effective and simultaneous detection for different types of failures with phase control means that are simpler comparing with other methods in which excitation phase adjustment is required. Especially, a two-step detection strategy is proposed to effectively detect phase failures due to faultily short-circuited phase shifters. Numerical results illustrate the effective sensing range of a single receiving antenna. Full-wave simulations validate the diagnosing performance in the presence of mutual couplings between array elements.

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Failure correction of antenna arrays using convex optimization

Bai

Feng

Liu

et al. 2022

Micro & Optical Tech Letters

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In this article, a convex optimization method for failure correction of impaired antenna arrays is proposed. The number of elements to be corrected is iteratively minimized through the reweighted L1‐norm algorithm while the corrected radiation pattern can be also ensured to be nearly consistent with the original one. Numerical results of a linear and a planar array correction demonstrate the better performance of the proposed method in terms of pattern consistency, number of corrected elements, and iteration speed compared with the state‐of‐the‐art techniques.

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Detection and Correction of Element Failures Using a Cumulative Sum Scheme for Active Phased Arrays

Cited by 23 publications

References 70 publications

Embryonics Based Phased Array Antenna Structure With Self-Repair Ability

Embryonics Based Phased Array Antenna Structure With Self-Repair Ability

A Diagnosing Method for Phased Antenna Array Element Excitation Amplitude and Phase Failures Using Random Binary Matrices

Failure correction of antenna arrays using convex optimization

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