A Study of Performance of Multi-sensor Hierarchical Fusion Algorithm with Feedback
Qiao Xiang-dong · Journal of Astronautics · 2004
Of late years,steady performance of two sensor hierarchical fusion algorithm with nonfullrate communication was evaluated by Chang K.C.,the result indivates that performance of algorithm with complete feedback is not good as that of algorithm with partial feedback and moreover,in the case of complete feedback,increment of data rate does not improve the performance.Different from their research,we pay more attention to the effect of number of sensors on the steady performance of the algorithm with different feedback mechanism.It shows that for algorithm with complete feedback,in the case of process noise being relatively large,increase on the number of sensors does not improve but worsens the performance.This conclusion is extension and development of work of Chang K.C.and,from another aspect,verifies that quality of information is much more important than quantity.