In this paper , forward motion compensation technology for lmk aerial survey camera is discussed in detail . lt is illustrated that forward motion compensation is the key techonology for air photography with high resolution 本文详细论述了lmk航空摄影机前向运动补偿控制系统的工作原理和实现方法，指出前向运动补偿控制系统是实现高分辨力摄影的关键。
At first , the history and the classification methods of aerial survey camera is introduced . in allusion to lmk aerial survey camera . this paper introduced the target of the image motion compensation 文章首先系统的概述了航空摄影机的分类方法、发展历史、设计特点，重点突出了本文所涉及的lmk航空摄影机前向运动补偿控制系统的由来、方法及其基本技术要求。
We could have it as the foundation for the aerial survey camera redesign . the performance of the collectivity is analysed finally , the effect of forward motion compensation is estimated . the equivalent residual image motion of the compensation control system is very small 最后，本人利用tms320f240dsp处理器的部分资源，对前向运动补偿控制系统的软件实现方法进行了研究和探讨，取得了较为满意的控制效果，为今后航空摄影机电控系统的设计工作打下了基础。
2 . combined , spatial and quantity structure of the land use according to baoying county ' s 2001 aerial survey data , the author adopts a series of indexes for analysis . the results indicate that cultivated land is the main land use type in this area and its space distribution is more centralized 宝应县土地利用的数量、空间和组合结构根据江苏省宝应县2001年航测编绘的土地利用现状图，采用一系列指标进行分析，结果表明，宝应县的主要用地类型为耕地，其空间分布比较集中，在整个区域内占主导地位。
This paper analyses the applied characteristic of phase - locked loops ( pll ) for the forward motion compensation technology of lmk aerial survey camera . according to the analysis , a new style pcb is produced . the realization by software for the forward motion compensation is discussed in this paper , which is realized by the ti prduction tms320f240 在对lmk航空摄影机像移补偿控制系统的再设计工作中，本人设计出了新的补偿电路线路板，并进行了几项典型的实验研究和前向运动补偿效果评价，经过外场飞行试验，进一步证明了该设计的可靠性、可行性、实用性。
