NDLI: Optimized processing of satellite signal via evolutionary search algorithm

Content Provider	IEEE Xplore Digital Library
Author	Hassan, A. Othman, R. Tang Kieh Ming
Copyright Year	2000
Description	Author affiliation: Satellite Navigation Res. Group, Univ. Teknologi Malaysia, Skudai, Malaysia (Hassan, A.)
Abstract	Researchers from the Satellite Navigation Research Group (SNAG) of UTM are currently conducting a research program that mitigates the effect of the Anti-Spoofing (AS) policy. A robust strategy, called the Pseudo Randomized Search Strategy (PRSS) has been developed to counter the effect of this AS policy. The PRSS algorithm is an adaptive search technique that can learn a high performance knowledge structure in reactive environments that provide information as an objective function. A combination of three methods, namely optimization, global random search and ambiguity function mapping has produced an efficient and robust mitigation technique. Numerical results indicate that, in all the test cases, no more than 4% search of the total search space was investigated to determine the correct set of answers. This result implies that the size of the search window does not play an important role in determining the search efficiency. This will take away the constraint resulted from the AS policy in processing the GPS satellites signal. The algorithm also shows its robustness because it does not require a good initial starting point. Using a different initial point, all of them produced the correct results.
Starting Page	115
Ending Page	121
File Size	655952
Page Count	7
File Format	PDF
ISBN	0780363558
DOI	10.1109/TENCON.2000.893552
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-24
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal processing Turing machines Robustness Global Positioning System Least squares methods Satellite navigation systems Kinematics Frequency estimation Wavelength measurement Counting circuits
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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