A system of retarted functional differential equations as a predator-prey model with stage structure and dispersion is discussed. Conditions for global stability of the system are given.

Only through such a realignment in the composition of global demand can the unprecedented dispersion of current account imbalances between deficit and surplus nations be narrowed.

The final tracking results can be obtained through dispersion processing multimode tracking data with Kalman filter and performing global fusion for the processed results.