scholarly journals Random Finite Set Based Data Assimilation for Dynamic Data Driven Simulation of Maritime Pirate Activity

2017 ◽  
Vol 2017 ◽  
pp. 1-18 ◽  
Author(s):  
Peng Wang ◽  
Ge Li ◽  
Rusheng Ju ◽  
Yong Peng

Maritime piracy is posing a genuine threat to maritime transport. The main purpose of simulation is to predict the behaviors of many actual systems, and it has been successfully applied in many fields. But the application of simulation in the maritime domain is still scarce. The rapid development of network and measurement technologies brings about higher accuracy and better availability of online measurements. This makes the simulation paradigm named as dynamic data driven simulation increasingly popular. It can assimilate the online measurements into the running simulation models and ensure much more accurate prediction of the complex systems under study. In this paper, we study how to utilize the online measurements in the agent based simulation of the maritime pirate activity. A new random finite set based data assimilation algorithm is proposed to overcome the limitations of the conventional vectors based data assimilation algorithms. The random finite set based general data model, measurement model, and simulation model are introduced to support the proposed algorithm. The details of the proposed algorithm are presented in the context of agent based simulation of maritime pirate activity. Two groups of experiments are used to practically prove the effectiveness and superiority of the proposed algorithm.

2020 ◽  
Vol 86 ◽  
pp. 102469
Author(s):  
Fugen Yao ◽  
Jiangtao Zhu ◽  
Jingru Yu ◽  
Chuqiao Chen ◽  
Xiqun (Michael) Chen

Entropy ◽  
2018 ◽  
Vol 20 (8) ◽  
pp. 569
Author(s):  
Peng Wang ◽  
Ge Li ◽  
Yong Peng ◽  
Rusheng Ju

Parameter estimation is one of the key technologies for system identification. The Bayesian parameter estimation algorithms are very important for identifying stochastic systems. In this paper, a random finite set based algorithm is proposed to overcome the disadvantages of the existing Bayesian parameter estimation algorithms. It can estimate the unknown parameters of the stochastic system which consists of a varying number of constituent elements by using the measurements disturbed by false detections, missed detections and noises. The models used for parameter estimation are constructed by using random finite set. Based on the proposed system model and measurement model, the key principles and formula derivation of the proposed algorithm are detailed. Then, the implementation of the algorithm is presented by using sequential Monte Carlo based Probability Hypothesis Density (PHD) filter and simulated tempering based importance sampling. Finally, the experiments of systematic errors estimation of multiple sensors are provided to prove the main advantages of the proposed algorithm. The sensitivity analysis is carried out to further study the mechanism of the algorithm. The experimental results verify the superiority of the proposed algorithm.


2019 ◽  
Vol 132 ◽  
pp. 103407 ◽  
Author(s):  
Qiuru Zhang ◽  
Liangsheng Shi ◽  
Mauro Holzman ◽  
Ming Ye ◽  
Yakun Wang ◽  
...  

2014 ◽  
Vol 29 ◽  
pp. 1266-1276 ◽  
Author(s):  
Piyush Tagade ◽  
Hansjörg Seybold ◽  
Sai Ravela

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