Sewing thread segmentation can help locate the defects in fabric sewing process, which is a challenging problem in factory quality control. In this paper, we propose a twin U-shaped Transformer Network (TUTNet) for se...
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A general model for creating an optical vortex using a variable-width Fermat spiral slit(FSS)mask was *** generated optical vortex demonstrates much better quality than those produced by slits with a uniform *** depth...
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A general model for creating an optical vortex using a variable-width Fermat spiral slit(FSS)mask was *** generated optical vortex demonstrates much better quality than those produced by slits with a uniform *** depth of focus was nearly doubled,which can be explained by discretizing the gradual-width *** demonstrate the generation robustness,the slits were printed on a transparent slide,and an output vortex beam with greater than 98%intensity purity was *** the high quality and simplicity of this vortex generation method,its analysis and generation scheme are expected to be extended to generation of plasmonic vortices and short-wavelength light sources such as X-rays and electron *** of highquality optical vortex beams at an almost negligible cost will make investigation much more accessible.
We analyse the main formula of a recently introduced nonlinear interference model for dualpolarisation four-dimensional (DP-4D) formats and its implications on improved DP-4D designs. We show that nonlinearity toleran...
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Based on a comparative analysis of the Long Short-Term Memory(LSTM)and Gated Recurrent Unit(GRU)networks,we optimize the structure of the GRU network and propose a new modulation recognition method based on feature ex...
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Based on a comparative analysis of the Long Short-Term Memory(LSTM)and Gated Recurrent Unit(GRU)networks,we optimize the structure of the GRU network and propose a new modulation recognition method based on feature extraction and a deep learning ***-order cumulant,Signal-to-Noise Ratio(SNR),instantaneous feature,and the cyclic spectrum of signals are extracted firstly,and then input into the Convolutional Neural Network(CNN)and the parallel network of GRU for *** modulation modes of communication signals are recognized *** results show that the proposed method can achieve high recognition rate at low SNR.
Optical camera communication (OCC) has been widely employed in various applications as a flexible and cost-effective means of communication both on land and underwater. However, the performance of the OCC system throu...
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Optical camera communication (OCC) has been widely employed in various applications as a flexible and cost-effective means of communication both on land and underwater. However, the performance of the OCC system through the water-air interface has not been thoroughly investigated. In this paper, we explore the performance of the OCC system in a water-air environment and propose a bubble-wave-mitigation algorithm to pre-process the captured frames of received video. Moreover, we propose a transformer-based neural network to demodulate the transmitted signal, mitigating the deterioration in transmission performance caused by inter-symbol interference (ISI). The experimental results demonstrate that a robust transmission can be achieved in the water-air environment by applying our proposed algorithms and neural network demodulator. Author
This paper addresses the problem of trajectory tracking of an inverted pendulum mounted on an autonomous quadrotor *** mathematical model of the quadrotor-inverted-pendulum system is first *** and angular velocity con...
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ISBN:
(数字)9789887581536
ISBN:
(纸本)9781665482561
This paper addresses the problem of trajectory tracking of an inverted pendulum mounted on an autonomous quadrotor *** mathematical model of the quadrotor-inverted-pendulum system is first *** and angular velocity control laws are then constructed based on the backstepping technique;the former law features an implicit bound with respect to the position *** origin of the closed-loop system error associated with the proposed control methodology is shown to be locally asymptotically *** simulation results are presented to validate and demonstrate the performance of our solution.
The ability to predict cow calving easiness cost-effectively, especially in the dairy industry where cattle suffer from a variety of unpredictable deadly illnesses and high breeding expenses assist farmers in improvin...
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This paper studies the problem of estimating the means ± θ2 Rd of a symmetric twocomponent Gaussian mixture δN(θ;I) + (1 - δ) N(-θ;I), where the weights δand 1 - δare unequal. Assuming that δis known, we ...
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Photovoltaic (PV) forecasting is done to help in managing planning and knowing PV energy production. However, PV systems are always associated with fluctuating weather parameters, such as solar irradiance, temperature...
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In robotics applications, ensuring reliable performance in the presence of actuator faults is essential for maintaining system safety and reliability. This paper presents a tolerant tracking control method for permane...
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