It and following 13 GPS IIR-M satellites are added to the new GPS civil PRN code defined as L2-C code.

As the GPS signal travels from the GPS satellite to the receiver, it propagates through the atmosphere of the earth, where it is retarded and its path changed from a straight line to a curved one.

In comparison with the simple homogeneous function form of Geiger and Santerre, a precise sky distribution density function of GPS satellites related to the station latitude and to the inclination of satelliteis studied.

The preliminary results of residual analysis are shown,and it is pointed out that the present sparse laser ranging data of GPS satellites are very valuable for precise orbit determination of the satellites and station coordinate solution.

The location control principle of time delay pseudo GPS satellites jamming is discussed through the time difference location equation.

Application of GPS Satellite Positioning System in Mountainous Area;

This paper introduces the piling construction technique of ultra-long and ultra-large-diametered steel pipe pile performed by Haili #801 large piling driving vessel adopting Type S-280 double-functioned hydraulic hammer and GPS satellite positioning technology under bad wind, wave and flow conditions in Hangzhou Bay.