In this paper, the construction of the orbit data for SPOT image is described and the mathod using the data is discussed. The basic mathematical model for the simultaneous adjustment of SPOT imagery using the orbit data and a few control points are presented. The method can evoid the high correlation between the crientation elements during adjustment processing and decrease the number of necessary control points. Finally, the results of esperiments are given. The results have proved that the solution of unknown points and orientation elements obtained by the mathematical model in this paper are of sufficient accuracy. An adjustment without ground control points sows that it is pollible to determine positions of ground points using SPOT orbit data directly.

本文从数字测图的角度叙述了广义最小二乘法的原理及其应用，同时，探计了阵列代数算法在数字测图中的应用，并根据上述理论和方法建立了解算DTM的数学模型。最后介绍了试验结果。

本文分析了实孔径雷达与CCD传感器影象不同的成象特点，讨论了采用小波变换进行边缘检测、影象分解与重建、实现分层匹配的方法；同时，提出了多种匹配算法模式。经过试验，取得了良好的结果。

In a general, different sensor images of the same scene have different gray characteristics, Simple algorithms such as t hose based on area comelation can not be used directly. Therefore, an edge feature-matching algorithm is pressed in this paper. The algorithm uses feature parameters of edges as matching primitives. An edge deleetion approach with wavelet is discussed in order to extract edges form images. The mathematical models of edge representation and matchin algorithm based on line moments are developed. Results obtained from above metbods are reported.

本文讨论了一种基于小波变换的影像多尺度特征提取方法。在多尺度特征提取的过程中，采用了局域正则性指数作为约束条件，保证了特征提取的可靠性；提取的特征用于实时影像匹配和飞行器导航与定位，取得了满意的结果。