This article introduces a system that can process the data of control network with Indirect Adjustment method and optimize it by adopting simulation method.

In this paper, through the model of parameter adjustment with constraints among the parameters, a further proof on the equivalence of the formulas of variance-covariance components is gives.

The rigorous formula of gyroscopic orientation using turning points method is derived by L. S. adjustment in the paper. The comparisons to the Schuler and Thomas average are studied.