High-precision initialization and acceleration of particle filter convergence to improve the accuracy and stability of terrain aided navigation

2020 ◽  
Author(s):  
Wang Rupeng ◽  
Chen Yunsai ◽  
Li Ye ◽  
Xu Pengfei ◽  
Shen Peng
Keyword(s):  
Particle Filter ◽  
High Precision ◽  
Filter Convergence ◽  
Accuracy And Stability

Dynamic Object Tracking Based on KAZE Features and Particle Filter

2014 ◽  
Vol 556-562 ◽  
pp. 2702-2706
Author(s):  
Ying Xia ◽  
Xin Hao Xu
Keyword(s):  
Particle Filter ◽  
Object Tracking ◽  
Scale Invariance ◽  
Experimental Results ◽  
Object Model ◽  
Dynamic Object ◽  
Color Features ◽  
Dynamic Tracking ◽  
Object Appearance ◽  
Accuracy And Stability

Accuracy and stability is crucial for dynamic object tracking. Considering the scale invariance, rotational invariance and strong anti-jamming capability of KAZE features, a method of dynamic object tracking based on KAZE features and particle filter is proposed. This method obtains the global color features of the dynamic object appearance and extracts its local KAZE features to construct the object model first, and then performs dynamic tracking by particle filter. Experimental results demonstrate the accuracy and stability of the proposed method.

High precision multi-spindle wrench for automated sealing of joints during assembly of products operating at high pressures

2020 ◽  
pp. 348-351
Author(s):  
Yu.Z. Zhitnikov ◽  
B.Yu. Zhitnikov ◽  
A.E. Matrosov
Keyword(s):  
High Precision ◽  
Experimental Analysis ◽  
High Pressures ◽  
Threaded Joints ◽  
Achievable Accuracy ◽  
Accuracy And Stability

Based on the theoretical and experimental analysis of achievable accuracy and stability of main forces of automated tightening of threaded joints, a multi-spindle nut has been developed, which ensures tightness of joints of articles operating at high pressures.

scholarly journals Improvements to Terrain Aided Navigation Accuracy in Deep-Sea Space by High Precision Particle Filter initialization

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 13029-13042 ◽  
Author(s):  
Wang Rupeng ◽  
Li Ye ◽  
Ma Teng ◽  
Cong Zheng ◽  
Gong Yusen ◽  
...  
Keyword(s):  
Particle Filter ◽  
High Precision ◽  
Deep Sea ◽  
Navigation Accuracy

A Study of High-Precision Internal Clock Maintenance Method

2013 ◽  
Vol 765-767 ◽  
pp. 2407-2410
Author(s):  
Bu Xin You ◽  
He Zhi Liu ◽  
Peng Tian ◽  
Jia Xu ◽  
Jing Bu
Keyword(s):  
Real Time ◽  
High Precision ◽  
Random Error ◽  
Engineering Application ◽  
Internal Clock ◽  
Accurate Information ◽  
Dynamic Compensation ◽  
The Real ◽  
Accuracy And Stability ◽  
Gps Timing

In the engineering application, we put forward higher request to the device in the clock accuracy and stability. In this paper, we can modify GPS second pulse online which based on the GPS timing and combine high precision crystal in order to reduce its random error. And on this basis, we put forward a method of dynamic compensation to do the real-time numerical compensation in the apparatus. It can be used as accurate information for the device using nanosecond, not only has high precision, but also simple to implement, and has higher application value in engineering.

scholarly journals Human-Manipulator Interface Using Particle Filter

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Guanglong Du ◽  
Ping Zhang ◽  
Xueqian Wang
Keyword(s):  
Particle Filter ◽  
High Precision ◽  
Robot Manipulator ◽  
Human Hand ◽  
Hand Motion ◽  
Translation Error ◽  
Camshift Algorithm ◽  
Short Period ◽  
Interface System ◽  
3D Camera

This paper utilizes a human-robot interface system which incorporates particle filter (PF) and adaptive multispace transformation (AMT) to track the pose of the human hand for controlling the robot manipulator. This system employs a 3D camera (Kinect) to determine the orientation and the translation of the human hand. We use Camshift algorithm to track the hand. PF is used to estimate the translation of the human hand. Although a PF is used for estimating the translation, the translation error increases in a short period of time when the sensors fail to detect the hand motion. Therefore, a methodology to correct the translation error is required. What is more, to be subject to the perceptive limitations and the motor limitations, human operator is hard to carry out the high precision operation. This paper proposes an adaptive multispace transformation (AMT) method to assist the operator to improve the accuracy and reliability in determining the pose of the robot. The human-robot interface system was experimentally tested in a lab environment, and the results indicate that such a system can successfully control a robot manipulator.

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