A MLE Based Algorithm for Registration in Sensor Networks
Wei zixiang, Wang Jun, Wei Shaoming, Zhaotao Qin, Xiang Hong · 2019 IEEE 3rd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC) · 2019
Sensor bias may severely affect the use of measurements acquired in sensor networks. A registration algorithm based on maximum likelihood estimate (MLE) for estimating the bias is presented in this paper. Firstly, the impact of residual bias on target state estimate was analyzed. Then the likelihood function with respect to residual sensor bias was derived, and an iterated algorithm was presented to obtain MLEs of bias. The presented algorithm is a batch algorithm. Simulations are performed to demonstrate the effectiveness of the presented algorithms.