【摘要】 在张家祥提出的离极力系合成理论的基础上，深入研究了计算离极力系合成值的方法，建立了相对精确的数学模型。利用这一模型计算了不同余纬处的合成值，得到与地应力实测值相符合的理论值。计算结果表明，离极力系合成值是客观存在的，地形起伏是产生超常水平应力的原因。更多还原

【Abstract】 The theory of differential radar interferometry and its geometry are described.The baseline,image correlation and phase coherence of which are analysed.The problem of obtaining the amount of ground deformation from differential phase is presented.The experiment in the Bonn field is explained and the result of studying on Landers earthquake by this technique is given.It is recommanded to research on differential radar interferometry as early as possible.更多还原