Integrated navigation system study based on distributed multiscale fusion estimation

Multiscale distributed fusion estimation is the algorithm of multisensor system, which uses the multiscale analysis establishing the multiscale dynamic models. The result at one given scale is got by observation systems at different scales. Estimating the result to the thinnest scale, the optimal estimation is obtained based on the overall observations and the estimation is the optimal in the sense of the least variance. The algorithm is used in integrated navigation system. The estimates are more accurate than the results at the thinnest scale. The simulation results show that the accuracy is improved.