A quasi-Newton indoor localization algorithm based on the Doppler effect
ZHANG Xiaoyan1, SUN Tingting2, XU Xinmin2
1. Zhejiang Changzheng Vocational and Technical College, Hangzhou 310023, China;
2. College of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, China
Abstract：To avoid the clock synchronization between objective node and beacon nodes in indoor location system, a new distance measuring method based on the Doppler effect is proposed. A quasi-Newton indoor localization algorithm is implemented for distance measurement. The initial parameters for quasi-Newton are obtained randomly. Quasi-Newton is used to get each single position. Then, all the relative positions would be iterated to adjust the original position for localization. Matlab simulations show that the location error is less than 0.5 m when SNR is 10. Then, particle swarm optimization is applied to improve the performance of convergence.
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2017, Vol. 44 
