A NEW APPROACH FOR IMPROVING OF GPS POSITIONING ACCURACY BY USING AN ADAPTIVE NEUROFUZZY SYSTEM, BEFORE AND AFTER S/A IS TURNED OFF

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MOUSAVI M.R.; MOHAMMADI K.; REFAN M.H.

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Journal: INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH) Year:2004 | Volume:15 | Issue:1 Page(s): 101-114

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Title

A NEW APPROACH FOR IMPROVING OF GPS POSITIONING ACCURACY BY USING AN ADAPTIVE NEUROFUZZY SYSTEM, BEFORE AND AFTER S/A IS TURNED OFF

Author(s)

MOUSAVI M.R. | MOHAMMADI K. | REFAN M.H. | Issue Writer Certificate

Keywords

POSITIONING ACCURACYQ4

LOW COST GPS RECEIVERQ4

FUZZY SYSTEMQ4

NEURAL NETWORKQ4

S/A ERRORQ4

Abstract

This paper presents a new method to determine an accurate position by using a LOW COST GPS RECEIVER and proposes a neurofuzzy system for better accuracy in GPS positioning. At first a fix position parameters, such as Dilution of Precision (DOP) and Signal to Noise Ratio (SNR), are measured. Then those are applied to FUZZY SYSTEM. FUZZY SYSTEM output defines as Reliable Factor (R.F.). Based on the R.F. values, the more accurate positions are selected. Calculating the errors of fuzzy selected position components, real and dynamic patterns of the errors will be created and feed in to NEURAL NETWORK. The NEURAL NETWORK is trained with such real data to predict the later seconds errors. The steps of design and implementation of the neurofuzzy system are presented and the experimental result of the tests are stated with real data, before and after Selective Availability (S/A) is turned off. Those show that the errors of position components decrease due to using of the neurofuzzy system. Also, it is shown that the POSITIONING ACCURACY with adaptive neurofuzzy system is independent of the absence of S/A or its presence.

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APA: Copy

MOUSAVI, M.R., MOHAMMADI, K., & REFAN, M.H.. (2004). A NEW APPROACH FOR IMPROVING OF GPS POSITIONING ACCURACY BY USING AN ADAPTIVE NEUROFUZZY SYSTEM, BEFORE AND AFTER S/A IS TURNED OFF. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH), 15(1), 101-114. SID. https://sid.ir/paper/52620/en

Vancouver: Copy

MOUSAVI M.R., MOHAMMADI K., REFAN M.H.. A NEW APPROACH FOR IMPROVING OF GPS POSITIONING ACCURACY BY USING AN ADAPTIVE NEUROFUZZY SYSTEM, BEFORE AND AFTER S/A IS TURNED OFF. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH)[Internet]. 2004;15(1):101-114. Available from: https://sid.ir/paper/52620/en

IEEE: Copy

M.R. MOUSAVI, K. MOHAMMADI, and M.H. REFAN, “A NEW APPROACH FOR IMPROVING OF GPS POSITIONING ACCURACY BY USING AN ADAPTIVE NEUROFUZZY SYSTEM, BEFORE AND AFTER S/A IS TURNED OFF,” INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE (ENGLISH), vol. 15, no. 1, pp. 101–114, 2004, [Online]. Available: https://sid.ir/paper/52620/en

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