Time-SEP Comprehensive Assessment of Methods for Calculating Positioning Accuracy of Navigation Systems

Abstract:

Based on 2 statistical testing schemes, the accuracy evaluation method of Time-SEP was proposed; 3 sphere error probability (SEP) methods were derivate and concluded. Simulation and experimental verification show that: Time-SEP method for navigation equipment positioning accuracy can give a relatively comprehensive evaluation; the scheme is feasible, compatible with the traditional calculation method of parameters and can fully utilize the single test data, test validation simple. 3 algorithms can all be used to calculate SEP, the maximum relative error is less than 5%; the χ2 distribution approximation somewhat conservative is recommended; and MLE values can be used as the initial value of integral operation, to reduce the number of integral operation, access to the true value rapidly.

• Periodical: Advanced Materials Research (Volumes 765-767)
• Pages: 2026-2030
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.765-767.2026
• Online since: September 2013
• Authors: Rui Jiang, Yan Yong Wang, Gong Liu Yang, Yong Miao Wang
• Keywords: Accuracy Evaluation, Circular Error Probable, Maximum Likelihood Estimate, Sphere Error Probability, χ2 Distributing

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