This method offers more precise geometry for spaceborne sar system design and simulation . 3 . in the analyzing on the radar doppler properties , under the ellipsoid earth model and ellipse orbit model , considering the earth rotation , the radar doppler properties with different orbit eccentricity are compared , and the fact that orbit eccentricity affects doppler frequency rate is found 在雷达多普勒特性分析中，论文采用椭球地球模型和椭圆轨道模型，结合地球的自转，通过不同偏心率下雷达多普勒特性的比较，研究了轨道偏心率对合成孔径雷达系统设计与模拟软件研究雷达多普勒调频斜率的影响。
The main points of the research work of this thesis are as follow power system full dynandc simulation is such a method in which the simulations of e1ectric - mechanical trallsient , ndd - term and long - term dguamic phenomena are unified and the main feathes of this method are to develop a unified simulation of fast trallsient process and slow ndd - and long - term dynamc process 本论文是电力系统全过程动态(机电暂态与中长期动态过程)仿真技术与软件研究成果的总结，论文的主要内容如下：电力系统全过程动态仿真的特点是要实现快速的机电暂态过程和慢速的中长期动态过程的统一仿真。
The study includes the hole color tv imagery system for drill hole , even - pole bore - hole acoustic system and acoustic meter , bore - hole multi - point consolidation apparatus , the quick camera computer - aid image for high rocky slope , image technology for layer analysis , safety monitoring technology for the section close to the dam , software for processing and forecasting the slope monitoring data , high precision geodesy monitoring automation system , etc . . all the study results are new , advanced and practical , which has applied in the project and gained the obvious benefits 钻孔彩色电视孔壁成像系统、直接横波测井研究偶极子井下声系和声波仪、钻孔多点渗压仪及压模系统、岩质高边坡快速摄像微机地质素描成图、层析成像技术、近坝库段安全监测技术、边坡监测数据处理预报软件研究、高精度大地测量监测自动化系统等项目，研究成果内容新、先进、实用，已在工程中应用，效益显著。
