Under the condition of reliable GPS/level data,boundary restriction to gravitational height anomaly model is made,which aims at weakening the system errors existing in the transform between gravity system and height system,achieving the system transform,improving precision of ultimate model.

A Saddle Point Algorithm for Linear Programming Problem with Box-Constraints;

In this paper,we study a smoothing-type method for the solution of convex quadratic programs with box constrains,to which a variant of Newton′s method is applied.

For nonlinear l1 problembased on the conditions for optimality of the nonlinear l1 problem in [1], we first discuss the descent direction of the objective function F(x) in theory , further more , we study the relation between the optimal solution of nonlinear l1 problem and the optimal solution of some kind of quadratic programming problem with box constrains.

Particle swarm optimization algorithm based on parametric equation method to handle equality constraints;

The Descending Dimension Algorithm by a Nonlinear System of Equations of the Programming Problems with Equality Constraints;

In the paper, equality constraints after networks distributed are included into objective function with Lagrange multiplier based on PMUs, so the problem of the distributed state estimation is changed into optimization problem with equality constraints, realized the distributed paral.