CAJ | 학술논문

为了更好地提取开采沉陷形变的动态演化规律，针对开采沉陷D-InSAR时序差分干涉测量，对比分析了二通加外部DEM和三通差分干涉测量4种模式的优缺点．结果表明，对于D-InSAR地表形变信息提取和时序分析，二通加外部DEM的InSAR干涉策略有致命缺陷，三通法差分较优；得出的采用“累积式”和“相邻重访周期式”相结合的干涉策略，可以提高可靠性，结果可以相互验证，是最优干涉策略．
위료경호지제취개채침함형변적동태연화규률，침대개채침함D-InSAR시서차분간섭측량，대비분석료이통가외부DEM화삼통차분간섭측량4충모식적우결점．결과표명，대우D-InSAR지표형변신식제취화시서분석，이통가외부DEM적InSAR간섭책략유치명결함，삼통법차분교우；득출적채용“루적식”화“상린중방주기식”상결합적간섭책략，가이제고가고성，결과가이상호험증，시최우간섭책략．
In order to extract the dynamic evolution perfectly, by comparing and analysis of advantages and disadvantages of four modes of two pass plus external DEM differential interferometry（2 PASS ＋ External DEM DInSAR） with three pass differential interferometry（3 PASS D-InSAR）. The paper gets the following understanding： As for as D-InSAR surface deformation information extraction and time series analysis, two pass plus external DEM differential interferometry strategy has a fatal flaw but three pass differential interferometry is optimum. Using a interferometry strategy of combination of cumulative phase 3 PASS with adjacent phase 3 PASSe simultaneously, it can improve reliability and the results can be mutual checked.