A novel positioning algorithm optimized by maximum likelihood estimation

作者：Chen Cuisong; Liu Jianqi^*

来源：The Open Automation and Control Systems Journal, 2014, 6(1): 1011-1015.

DOI：10.2174/1874444301406011011

• Environmental adaptability
• Fuzzy positioning
• Location-aware application
• Positioning accuracy
• Positioning algorithms
• TDOA positioning
• Time difference of arrival
• Wireless sensor network (WSNs)

As for most location-aware applications need the precise location information, the wireless sensor networks (WSNs) are applied to positioning. But in some situation, Time Difference of Arrival (TDOA) positioning algorithm for WSNs may result in fuzzy positioning. This paper proposes a method to optimize fuzzy positioning of TODA through maximum likelihood estimation based on the identification of causes of fuzzy positioning resulted from TODA;the simulation experiment shows that TDOA positioning algorithm optimized by maximum likelihood estimation features high positioning accuracy and excellent environmental adaptability, thus constituting a practicable solution.

• 出版日期2014