Estimating Gas Source Location Based on Distributed Adaptive Deflection Projected Subgradient Method
A novel method based on distributed adaptive deflection projected subgradient is proposed in this paper. By used of attenuation model of a gas source in wind field, the method is able to process the distributed information from sensors by using the developed algorithm, replace the original gradient direction with deflection subgradient direction, and utilize the deflected subgradient projection hyperplanes as the searching areas in the process of relaxed projection, so as to obtain the gas source position. A related simulation provided in the paper illustrates that this method can not only provide good convergence property and accurate localization results, but also save large amount of energy.
KeywordsWireless Sensor Network Gas source localization Distributed Deflection Projected subgradient
This work was financially supported by the Foundation of China (No. 61471228) and the Key Project of Guangdong Province Science & Technology Plan (No. 2015B020233018).
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