A5039638083- Inertial Sensor and Navigation
- Advanced Fiber Optic Sensors
- Sensor Technology and Measurement Systems
- Geophysics and Sensor Technology
- Target Tracking and Data Fusion in Sensor Networks
- Structural Health Monitoring Techniques
- Underwater Vehicles and Communication Systems
- Advanced MEMS and NEMS Technologies
- Photonic and Optical Devices
- Advanced Fiber Laser Technologies
- Advancements in PLL and VCO Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Algorithms and Applications
- Advanced Photonic Communication Systems
- Advanced Computational Techniques and Applications
- Underwater Acoustics Research
- Speech and Audio Processing
- Lightning and Electromagnetic Phenomena
- Blind Source Separation Techniques
- Electromagnetic Compatibility and Noise Suppression
- Optical Network Technologies
- Single-cell and spatial transcriptomics
- Mechanical and Optical Resonators
- Direction-of-Arrival Estimation Techniques
- Microwave and Dielectric Measurement Techniques
Zhejiang University
2013-2024
Nanjing University of Aeronautics and Astronautics
2021-2024
Second Affiliated Hospital of Zhejiang University
2021
Zhejiang Institute of Mechanical and Electrical Engineering
2006
Tianjin University
2006
Abstract Atherosclerosis (AS), a leading cause of cardio-cerebrovascular disease worldwide, is driven by the accumulation lipid contents and chronic inflammation. Traditional strategies primarily focus on reduction to control AS progression, leaving residual inflammatory risks for major adverse cardiovascular events (MACEs). While anti-inflammatory therapies targeting innate immunity have reduced MACEs, many patients continue face significant risks. Another key component in progression...
A high-sensitivity demodulation method for the vibration-induced frequency shift of an optoelectronic oscillator (OEO) using acousto-optic modulator (AOM) has been proposed and experimentally demonstrated. This is achieved by separating optical carrier (OC) first-order sideband, directing them into reference sensing arms a Michelson interferometer (MI), respectively. Additionally, since system sensitivity depends on rather than oscillating frequency, vibration can be at OEO frequencies as...
In this paper the Trichel pulse regime of corona discharge in airflows is numerically studied with a two-dimensional model. The model based on hydrodynamic drift–diffusion approximation, taking into consideration flow air gap. Both transverse and longitudinal under different conditions have been investigated. influences characteristics pulses were clearly observed analysed. simulation results proved to be compatible experimental analysis reported literature.
This paper proposes a low cost and small size attitude heading reference system based on MEMS inertial sensors. A dual-axis rotation structure with proper rotary scheme according to the design principles is applied in compensate for drift caused by large gyroscope biases. An optimization algorithm installation angle error between body frame table’s frame. Simulations experiments are carried out evaluate performance of AHRS. The results show that could significantly reduce drifts. Moreover,...
Doppler velocity log (DVL) aided strapdown inertial navigation system (SINS) is a common method for underwater applications. Owing to the in‐motion condition and lack of GPS, it challenge align SINS under water. This paper proposed complete alignment solution both attitude position. The update equation its integral form in body frame are studied, coarse becomes an optimization‐based determination problem between gravity. Earth position separately treated, turns into solving problem....
In order to solve the problems of filtering divergence and low accuracy in Kalman filter (KF) applications a high-speed unmanned aerial vehicle (UAV), this paper proposed new method integrated robust adaptive filter: strong (SAKF). The simulation two high-dynamic conditions practical experiment were designed verify multi-sensor data fusion algorithm. Then performance Sage–Husa (SHAKF), tracking (STF), H∞ SAKF compared. results experiments show that can automatically select its process under...
Complex variational mode decomposition (CVMD) has been proposed to extend the original (VMD) algorithm analyze complex-valued data. Conventionally, CVMD divides data into positive and negative frequency components using bandpass filters, which leads difficulties in decomposing signals with low-frequency trend. Moreover, both number parameters of are required as prior knowledge CVMD, is difficult satisfy practice. This paper proposes a modified complex (MCVMD) method. First, upsampled through...
Cables or slip-rings are often used to power loads on a rotating unit in the rotation modulated inertial navigation system (RMINS). However, these supply methods have disadvantages of cable winding and slip ring friction wear, which reduces reliability life RMINS. Therefore, this paper applies magnetic coupling resonant wireless transfer (MCRWPT) technology RMINS avoid shortcomings above methods. Furthermore, according structure working characteristics RMINS, simple design method MCRWPT...
The traditional temperature modeling method is based on the full heating of accelerometer to achieve thermal balance, which not suitable for cold start-up phase micro-accelerometer. For decreasing complex drift phase, a new compensation high-order Fourier transform combined model proposed. system structure and repeatability test micro digital quartz flexible are provided at first. Additionally, we analyzed where comes from test. Secondly, with K-means clustering symbiotic organisms search...
The white light interferometer is advantageous for wavelength division multiplexing (WDM), but the excessive noise floor limits its application in practicality. In this Letter, we propose a fiber-optic sensor driven by broadband source, which uses Fabry–Perot cavity and reference to enhance strain resolution. experiment, resolution of 5.86 m resonant 18.5 fɛ/ H z at 1.5 kHz, while maximum detectable signal over 230 rad 1 kHz. With low cost, method provides new, best our knowledge, solution...
In practice, a high-dynamic vibration sensor is often plagued by the problem of drift, which caused thermal effects. Conversely, low-drift sensors typically have limited sample rate range. This paper presents system combining different types to address general drift problems that occur in measurements for signals. this paper, hardware structure and algorithms fusing are described. The include state estimation Kalman filter based on linear prediction model. Key issues such as dimension...
Kalman Filter (KF) is widely used in navigation as a data-fusion algorithm. When KF applied high-speed Unmanned Aerial Vehicle (UAV) mounted with low-cost integrated system, its performance always deteriorates complicated and high-dynamic conditions. Facing such scenario, we proposed new algorithm of adaptive this paper. The method based on 1-dimensional Convolutional Neural Network (CNN). key component the deep neural network estimator system noise covariance. We modeled Global Navigation...
Surface roughness of the conductor in transmission lines will introduce extra losses. The recently proposed Huray model is quite accurate for modeling these additional losses by changing R terms RLGC models. However, only focusing on loss line may lead to causality issues time domain simulations. In this paper, requirements models are theoretically analyzed firstly. Then, two solutions problems model-based with rough conductors were and compared. One them based numerical Hilbert transform,...
The effects of environmental parameters, e.g., humidity, on the corona discharges in practical applications are important. A two-dimensional (2D) hydrodynamic drift-diffusion model has been used to investigate humidity negative Trichel pulses (TPs). simulations performed with a conventional needle-to-plate configuration humid air. It is found that magnitude TPs grows gradually increasing and frequency increases humidity. movements formations charged particles faster higher numerical results...
With the miniaturization of inertial instruments, sensors mounted inside are vulnerable to interference. In a complex thermal transmission environment, temperature drift is main factor restricting precision high-performance sensors. To solve this problem, new method for compensating time-related cold starting introduced in paper. Based on perspective that can be regarded as response curve sensor system and gradient, compensation models first-order, second-order, higher-order proposed....
Utilizing the difference in phase and power spectrum between signals noise, estimation of direction arrival (DOA) can be transferred to a spatial sample classification problem. The ratio, namely signal-to-noise ratio (SNR), is highly required most high-resolution beamforming methods so that high resolution robustness are incompatible noisy background. Therefore, this paper proposes Subspaces Deconvolution Vector (SDV) method improve DOA estimation. In environment, handle difficulty...
Calibration and compensation techniques are essential to improve the accuracy of strap-down inertial navigation system. Especially for new uniaxial rotation module system (URMINS), replacing faulty modules introduces installation errors between reduces accuracy. Therefore, it is necessary calibrate these systems effectively compensate error modules. This paper proposes a self-calibration method without additional information equipment. Using attitude, velocity, position differences two sets...