Luo, Zhihui |  Yang, Yexu... -  《Measurement Science & Technology》 - 2025,36(1) - 1～15 - 共15页

摘要：A new method for identifying gas pipeline leaks using an ultra-weak fiber Bragg grating(UWFBG) distributed acoustic sensing (DAS) system is proposed. To enhance the accuracy ofgas leakage detection, a...

关键词： convolutional neural network |  ultra-weak fiber optic grating |  distributed acoustic sensor |  pipeline leakage identification |  identification accuracy

Ran, Changyan |  Xiao, Peijun... -  《IEEE sensors journal》 - 2024,24(22) - 36874～36881 - 共8页

摘要：at the problem of low signal identification accuracy due to various noises in pipeline intrusion signals collected by the ultraweak fiber grating distributed acoustic sensors (uwDAS) system, we propos...

关键词： Noise reduction |  Noise |  Pipelines |  Iron |  Sensors |  Feature extraction |  Signal to noise ratio |  Entropy |  Vibrations |  Accuracy...

Ran, Changyan |  Cheng, Xianghong -  《sensors》 - 2016,16(9) - 共23页

摘要：

This paper presents a direct and non-singular approach based on an unscented Kalman filter (UKF) for the integration of strapdown inertial navigation systems (SINSs) with...

关键词： strapdown inertial navigation system (SINS) |  unscented Kalman filters (UKF) |  integrated navigation |  Euler angle kinematics |  singularity |  IN-MOTION ALIGNMENT |  KALMAN FILTER |  VEHICLES

Luo, Zhihui |  Lu, Bo... -  《optics express》 - 2023,31(19) - 31342～31353 - 共12页

摘要：A sound source direction-of-arrival (DOA) estimation method for microphone array based on ultra-weak fiber Bragg grating (UW-FBG) distributed acoustic sensor is proposed. The principle of acoustic sig...