Based on the mathematical model of satellite attitude jitter and paired echo theory,a method quantitatively analyzing the relationship between spotlight SAR imaging quality and satellite attitude jitter was develop.

But the traditional method for analyzing the azimuth ambiguity in strip-map mode SARs does not match the situation in the spotlight mode.

Finally, a high resolution image of cruise missile is obtained by spotlight mode of SAR.

We have developed airborne SAR experiment system working in Spotlight mode successfully, but little has been done about spaceborne Spotlight SAR.

According to the ideas of fuzzy model diagnosis,we established a standard model which is used to identify the lubricity of reservoir with fuzzy model of gas logging index.

Combined with the practice of the development of The Asking and Approving System for the Government,the author pointed out the significance of data mining in an information system,designed a standard model for information filtering,and accomplished the examination and approbation the applying information with decision-tree arithmetic or clustering arithmetic respectively.

If in DOS,the TSR can be executed immediately;however,under Windows,the group programs must further distinguish whether it is a standard mode or an enhanced mode.

The grey target theory is used to set up the model for mathematical evaluation;the tactical and technical performance indices,which reflect the effectiveness of weapon systems best,is used to form the index series of weapon systems to be evaluated(namely,the modes),and the standard mode of these index series is derived according to the .