|Table of Contents|

ANP estimation algorithm of onboard navigation system based on numerical integration(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2013年05期
Page:
115-120
Research Field:
交通信息工程及控制
Publishing date:

Info

Title:
ANP estimation algorithm of onboard navigation system based on numerical integration
Author(s):
LAI Ji-zhou WANG Wei LIU Jian-ye LIU Min MA Yan-ling
School of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China
Keywords:
airborne navigation system ANP estimation required navigation performance numerical integration
PACS:
U491.51
DOI:
-
Abstract:
In order to accurately estimate the actual navigation performance(ANP)of plane and ensure the safety of flight, the two-dimensional normal distribution characteristic of position error for onboard integrated navigation system was studied based on the operation mode of performance based navigation(PBN). An error model of plane's estimated position in the estimation of ANP was established. The numerical integration of the probability of error circle was derived. An ANP real-time estimation algorithm of onboard integrated navigation system was proposed based on the numerical integration of navigation error. Then a simulation of the estimation algorithm was carried out based on a typical integrated navigation mode of an airliner. Simulation result indicates that the ANP value can effectively make the accuracy of error estimation reach 95%. The algorithm can estimate the real-time error characteristics of integrated navigation system authentically, has high ANP assessment precision for actual navigation performance, and is a kind of effective method. 2 tabs, 9 figs, 16 refs.

References:

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Last Update: 2013-10-30