scholarly journals Application of STEKF in X-ray Pulsar Based Autonomous Navigation

2012 ◽  
Vol 29 ◽  
pp. 4369-4373 ◽  
Author(s):  
Jian Du ◽  
Bao-jun Fei ◽  
Ying Liu ◽  
Yu Xiao
Keyword(s):  
Autonomous Navigation ◽  
X Ray

Autonomous navigation using x-ray pulsars and multirate processing

2017 ◽  
Author(s):  
Po-Ting Chen ◽  
Jason L. Speyer ◽  
David S. Bayard ◽  
Walid A. Majid
Keyword(s):  
Autonomous Navigation ◽  
X Ray ◽  
Multirate Processing

scholarly journals A Fast Detection Algorithm for the X-Ray Pulsar Signal

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Hao Liang ◽  
Yafeng Zhan
Keyword(s):  
False Alarm ◽  
Navigation System ◽  
Detection Probability ◽  
Autonomous Navigation ◽  
Detection Algorithm ◽  
Observation Time ◽  
X Ray ◽  
Fast Detection ◽  
Simulation Results ◽  
Short Observation Time

The detection of the X-ray pulsar signal is important for the autonomous navigation system using X-ray pulsars. In the condition of short observation time and limited number of photons for detection, the noise does not obey the Gaussian distribution. This fact has been little considered extant. In this paper, the model of the X-ray pulsar signal is rebuilt as the nonhomogeneous Poisson distribution and, in the condition of a fixed false alarm rate, a fast detection algorithm based on maximizing the detection probability is proposed. Simulation results show the effectiveness of the proposed detection algorithm.

Algorithm Analysis of Autonomous Navigation of Spacecraft Based on X-ray Pulsars

2012 ◽  
Vol 36 (1) ◽  
pp. 97-106 ◽  
Author(s):  
Chong-Xia Zhong ◽  
Li Zhang ◽  
Feng Nian ◽  
Jun Yang
Keyword(s):  
Autonomous Navigation ◽  
Algorithm Analysis ◽  
X Ray

Autonomous navigation of Mars probe using X-ray pulsars: Modeling and results

2013 ◽  
Vol 51 (5) ◽  
pp. 849-857 ◽  
Author(s):  
Erhu Wei ◽  
Shuanggen Jin ◽  
Qi Zhang ◽  
Jingnan Liu ◽  
Xuechuan Li ◽  
...  
Keyword(s):  
Autonomous Navigation ◽  
X Ray

scholarly journals Mars Cruise Orbit Determination from Combined Optical Celestial Techniques and X-ray Pulsars

2017 ◽  
Vol 70 (4) ◽  
pp. 719-734 ◽  
Author(s):  
Jiandong Liu ◽  
Erhu Wei ◽  
Shuanggen Jin
Keyword(s):  
Kalman Filter ◽  
Autonomous Navigation ◽  
Unscented Kalman Filter ◽  
Integrated System ◽  
Observation Data ◽  
X Ray ◽  
Celestial Navigation ◽  
Federated Kalman Filter ◽  
Mars Pathfinder ◽  
Navigation Accuracy

The precise autonomous navigation for deep space exploration by combination of multi-source observation data is a key issue for probe control and scientific applications. In this paper, the performance of an integrated Optical Celestial Navigation (OCN) and X-ray Pulsars Autonomous Navigation (XNAV) system is investigated for the orbit of Mars Pathfinder. Firstly, OCN and XNAV single systems are realised by an Unscented Kalman Filter (UKF). Secondly, the integrated system is simulated with a Federated Kalman Filter (FKF), which can do the information fusion of the two subsystems of UKF and inherits the advantages of each subsystem. Thirdly, the performance of our system is evaluated by analysing the relationship between observation errors and navigation accuracy. The results of the simulation experiments show that the biases between the nominal and our calculated orbit are within 5 km in all three axes under complex error conditions. This accuracy is also better than current ground-based techniques.

Autonomous Navigation Using X-Ray Pulsars and Multirate Processing

2017 ◽  
Vol 40 (9) ◽  
pp. 2237-2249 ◽  
Author(s):  
Po-Ting Chen ◽  
Jason L. Speyer ◽  
David S. Bayard ◽  
Walid A. Majid
Keyword(s):  
Autonomous Navigation ◽  
X Ray ◽  
Multirate Processing
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