Mobile Communication Network-based Situation Estimation For Electromotion Motor

Aim to use abundance electromotion motor in the matter flow of modern times , we integrated the wireless location and navigation technic into it to make the optimal cost for serving custom and gain the most profit in best times. To improve the precision of location, the main idea of this arithmetic is basing on a location arithmetic of time difference of arrival(TDOA) and considering the influence of non-line-of-sight(NLOS)o During the process we introduced a location arithmetic of time of arrival(TOA) and simulated the errors of TOA by the stochastic variable of submitting to exponent distributing and simulated the errors of TDOA by the stochastic variable of submitting to zero average of gauss distributing then estimated coordinate by using maximum-likelihood(ML) estimation and obtained the amending valueo so, errors of location is a particle? Last, we more improved the location precision by map match ? This feasibility of the idea is proved through simulating examination .