中文摘要：

从摄影测量的基本原理出发，针对多基线摄影测量，介绍了光束法前方交会与线性法前方交会两种前方交会方法，并利用实验结果对多基线影像前方交会的两种方法进行了比较分析，从基线长度与参与交会的影像数两个方面分析了多基线影像前方交会的精度，为实际生产提供参考。

英文摘要：

Based on photogrammetric principals two methods for multi-baselines forward in tersection are introduced： bundle forward intersection and linear forward intersection. The two methods for multi-baseline forward are compared and analyzed. And how the baseline length and sequential-stereo-image counts influence the forward intersection precision is analyzed. The analysis result can give directions for practical production.