Shi Chuang

Multi-quadric Equations Interpolation and Its Applications to the Establishment of Crustal Movement Speed Field

In this paper, multiquadric equations interpolation is used to establish a widely covered and valuable speed field model, with which the crustal movement image is obtained.

Theoretic research on robustified least squares estimator based on equivalent variance-covariance

Depending on analyzing the abuse of equivalent weights, a set of self-contained theory system on robust estimation based on equivalent variance-covariance is established, which includes ϱ function, φ function, equivalent variance-covariance function, influence function and breakdown point. And an example is given to verify that the robust models proposed in this paper are reliable and correct.

Estimation of geodetic parameters with VLBI data of last 5 years

The meaning to research the potential of VLBI for geodetic applications is summarized. And the observation models and their related parameters of geodetic interest are investigated. Then, the principle and method of using the random model in VLBI data processing are investigated. With the world wide VLBI data from 2000–2004, the conditions to compute the parameters of geodetic interest are introduced, and so are the computing methods and processes. And the computed results of the parameters of geodetic interest are analyzed.

Chinese surveying and control network for earth-orbit satellites and deep space detection

The relationship between the surveying and control network (CSN) for earth-orbit satellite and spatial geodesy, and the relationship between the CNS for deep space celestial bodies and detectors, and deep space detection are briefly summarized, and so are the basic technical needs of the deep space surveying and control network(DSN). Then, the techniques, the consituents and the distributing of Chinese satellite CSN (CSCSN) and other radio observing establishments in China are introduced. Lastly, with the primary CSCSN and other observing establishments, some projects for China to rebuild a more perfect CSCSN, and to establish a DSN are analyzed and stated.