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- W2071375921 abstract "Abstract In complex environment, issues such as reflection, multipath propagation, non-line of sight and antenna gain, etc. would result in significant propagation losses as for the same distance. In order to effectively reduce ranging error and location error caused by received signal strength indication (RSSI) measurement distance, a location algorithm based on chaos particle swarm optimization ranging (CPSOR) is proposed for indoor location and navigation applications. By setting reference beacon nodes within location region, the relationship between distance and RSSI which is measured from target node to each beacon node is automatically corrected, and RSSI ranging error is effectively reduced, thus the objective of improving location accuracy is achieved. Numerical results show that the processing time of CPSOR location algorithm is reduced by 62% and the location accuracy of CPSOR is improved by 72% in contrast that of back propagation (BP) neural network location algorithm. Besides, practicality experiment results show that when the distance between beacon nodes is 50 m, the average location error of CPSOR location algorithm is 1.21 m and the location error of BP location algorithm is 3.36 m, thus the location accuracy is improved by 63%." @default.
- W2071375921 created "2016-06-24" @default.
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- W2071375921 date "2012-06-01" @default.
- W2071375921 modified "2023-09-27" @default.
- W2071375921 title "A chaos particle swarm optimization ranging correction location in complex environment" @default.
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- W2071375921 doi "https://doi.org/10.1016/s1005-8885(11)60479-2" @default.
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