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Xinjian Yin - IEEE Xplore Author Profile

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The global navigation satellite systems (GNSS) are crucial for applications such as traffic monitoring, intelligent transportation systems and advanced driver assistance systems; however, they are prone to large deviations or even failures in hidden scenarios such as urban canyons and tunnels. In this paper, we investigate a system based on distributed arrays for positioning and tracking of multip...Show More
Subspace-based direct position determination (DPD) using distributed sensor arrays is challenged by rank-loss of the noise-free data covariance matrix in a multi-path environment. Spatial smoothing methods are commonly utilised to address this challenge by restoring the matrix rank. Nevertheless, traditional approaches such as forward spatial smoothing pre-processing (FSSP), modified spatial smoot...Show More
In order to suppress the cogging torque of permanent magnet synchronous motors, a layered permanent magnet structure composed of different permanent magnet materials is proposed. The multiphysics coupling analysis of the electromagnetic field and the temperature field of the permanent magnet motor in ANSYS software was performed to obtain the temperature difference between the stator and the rotor...Show More
The direct instantaneous torque control has weak anti-interference ability and insufficient torque ripple optimization. In this paper, a method based on improved firefly algorithm to optimize SRM direct instantaneous torque control is proposed. On the basic of proportional integral control, the improved firefly algorithm is used to optimize the parameters which will help to find the optimal simula...Show More