Comprehensive TCEP Assessment of Methods for Calculating MUAV Navigation Position Accuracy Based on Visual Measurement

Author:

Wang Yan Yong1,Yang Gong Liu1,Jia Xing Rong2,Wang Yong Miao3

Affiliation:

1. Beihang University

2. Beijing Aviation Engineering Technology Research Center

3. PLA A.F.

Abstract

in order to satisfy the positioning accuracy identification requirement of MUAV navigation system, the characteristics of visual navigation were analyzed, the existing navigation system accuracy assessment methods were summarized and the conversion relationship of each index were deduced. According to the Ethridge statistical algorithm for calculating circular error probability (CEP), navigation and positioning accuracy assessment scheme were designed. Finally, the time-CEP(TCEP) accuracy evaluation method based on visual measurement was put forward, which were verified by simulation using four group actual INS data .The results show that: the scheme is feasible, convenient and practical; the method can relatively comprehensive evaluate the positioning accuracy of navigation system and can make full use of the single trial data.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference10 articles.

1. Tang Chaoying. A Survey of Visual Navigation [C]/JiangSu automatization institute academic annual meeting: JiangSu China, 2007: 96-104.

2. Shao Wei, Zhu Xiaoping, ZHAO Gang, Integrated Navigation Scheme for MUAV Based On Vision/GPS/MEMS. INS. [J] System Simulation Technology 2011, 7(1).

3. Yanyong Wang Xingrong Jia, Hui GAO, et al. The comparison of inertial positioning accuracy evaluation approach based on statistical inference [J] Journal of Computer Applications 2012, 32(S2): 276-279. (In Chinese).

4. Wang Yanyong Yang Gongliu Yuan erkai et al. TSEP positioning accuracy evaluation approach applied in 4D guidance. [J] Journal of Beijing University of Aeronautics and Astronautics 2013, 38. (In Chinese).

5. GJB 729-1989 The means for evaluation of the accuracy of inertial navigation systems[S]. (In Chinese).

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