After the Taiping Heavenly Kingdom occupied the South, the literati there immediately split up and looked for their new political living space according to their respective environment The major measures they took were as follows Some flaunted the banner of defending traditional moral principles, others fled to Shanghai and other places with the help of borrowed troops.

The theoretical analysis and simulation result indicate that the satellite orbit and attitude changes have a great influence upon the space-borne SAR imaging.

And a comparison with GPS system of Galileo system is studied in the following aspects: the satellite orbit deployment,the frequency and signal design,the pseudo-satellite technology and signal service.

The experiment result with real measurement shows that the new method can be used in real time autonomous satellite orbit determination with high accuracy.

On behalf of defencers in the Gao s,grandpa Gao and Keming are fierce and cruel,sham and obsolete.

The design and implementation on the commutator of wireless radio and the satellite channel;

Design and analysis of the pure data file transport protocol based on satellite channel

In satellite channels,most of lost package is due to transmission error instead of congestion.

According to the limitation of the satellite orbits and spectrum resources,this paper puts forward some methods for making effective use of the satellite orbits and spectrum resources.